MK3S

Revo™ ObXidian High Flow Nozzle The Revo High Flow ObXidian combines the Obxidian and High Flow features into one nozzle. Includes: Revo nozzle of selected size (1 pcs) High Flow Features: The Revo High Flow nozzle increases your...

3D Print Removal Tool - Scraper Includes: Scraper (1 pcs)

PB Select™ 3mm Nylon Filament  This 3mm nylon filament is used in the wiring harness of Prusa i3 printers.The length is 50cm which is the proper length for the extruder wiring harness. It can be cut down to 30cm if you need it...

Prusa Anti-Vibration Foot Includes: Anti-vibration foot (1 pcs) Fits:MK3MK3SMK3+MK4 To replace this part, please consult the Prusa Assembly Manuals. Make sure to follow the manual for your printer model.

  Basics of 3D Printing with Josef Prusa   English Version  "Basics of 3D Printing" takes you on a tour through the 3D printing world. This is a print version, the e-book can be downloaded for free at prusa3d...

  Basics of 3D Printing with Josef Prusa   Spanish Version  "Basics of 3D Printing" takes you on a tour through the 3D printing world. This is a print version, the e-book can be downloaded for free at prusa3d.com...

623ZZ Roller Bearing A nice quality roller bearing from E3D. Metal covers to keep dirt out of the rolling elements. Includes: Bearing (1 pcs) Specifications:ID: 3mmOD: 10mmW: 4mm Fits: Hemera (motor/heatsink)

  Dual Ball Bearing Blower Fan Cools the part being printed. Also known as the part cooling or print cooling fan. Includes: Blower fan (1 pcs) Specifications:Dual ball bearing 5 volts5000 RPM4.5 CFMConnector: Prusa compatibleBrand: LDO...

Prusa Print (Part) Cooling Blower Fan This is the fan that cools the part being printed. Includes: Fan (1 pcs) Fits:MK3MK3SMK3S+MINIMINI+ To replace this part, please consult the Prusa Assembly Manuals. Make sure to follow...

Boron Nitride Thermal Paste (BN Paste) Thermal paste improves heat conduction and heat distribution in the hotend. Contains high quality ZYP™ Boron Nitride and proprietary binders which reduce cracking and flaking when dried...

Brim Scraper (Mini Scraper) We find this tool handy for removing the brim, and purge lines from the build plate. Includes: Brim Scraper (1 pcs)

PB Select™ Heatbed to Einsy power cable for Prusa (screw-attached type) Runs from mainboard to heated bed.  Includes: Cable (1 pcs) Fits:MK3MK3SMK3S+ Note: Attachment screws not included To replace this part, please consult...

Prusa IR Filament Sensor-Einsy Cable Runs from filament sensor to mainboard. Includes: Cable (1 pcs) Fits:MK3SMK3S+ To replace this part, please consult the Prusa Assembly Manuals. Make sure to follow the manual for your printer...

PB Select™ PSU to Einsy Power Cable We use premium pure copper wire, tin plated copper connectors and adhesive heat shrink for a good quality long lasting cable. Includes: Power cable (1 pcs) Specs:Wire: 16 AWGLength: 18 inches...

Bondtech CHT BiMetal Nozzle - M6 Bondtech CHT® nozzles split the filament into 3 thinner strands allowing to melt the material from within. In doing so, the material melts faster and higher flow rates can be used. Includes: Nozzle of...

  Bondtech CHT Coated Brass Nozzle - M6 Bondtech CHT® nozzles split the filament into 3 thinner strands allowing to melt the material from within. In doing so, the material melts faster and higher flow rates can be used...

Micro Swiss CM2 Nozzle The Micro Swiss CM2™ Nozzle is an ideal nozzle for all applications. The core of the nozzle is made of high-temperature Copper Chromium Zirconium and plated with an Electroless Nickel Plating. This special alloy retains...

E3D Collet Clip Only fits this collet for 4 mm PTFE Tube. Includes: Collet clip (2 pcs) FitsE3D V6E3D Revo SixE3D Revo MiniE3D CRPrusa Bondtech

PB Select™ Plated Copper Nozzle High precision copper nozzles is great for printing everything from PLA to PEEK.Copper has a much higher thermal conductivity than brass and these nozzles can handle high temperatures (up to 495c)...

PB Select CopperBlock™ Heater Block Nickel composite coated copper increases thermal conductivity.  Includes: Heater block (1 pcs)Set screw (1 pcs)Clamping screw (1 pcs) Specifications:Plating: Nickel CompositeMax Temperature:...

Prusa Specific E3D V6 Hotend (24 volt) The only difference between the MK3/MK3S/MK3S+ hotend versions is the PTFE tube. By selecting your printer model above, you will get a hotend with the proper PTFE tube for your printer.  Includes...

Prusa Specific E3D V6 Hotend Kit (24 volt) The is a kit and requires assembly. Click here for the assembly guide Includes:PTFE tube0.40mm nozzle (1 pcs)Heatsink (1 pcs)Collet with clip (1pcs)Prusa specific heat break (1 pcs)Heater...

E3D Revo™ Kit for Prusa MK3 Series (MK3, MK3S, MK3S+) The Revo™ Prusa kit is a drop-in replacement, giving you all the benefits of E3D’s Rapid Change Revo ecosystem in an easy-to-upgrade package. The E3D Revo kits come in two...

3D Print Cleanup Tool This deburring tool is great for cleaning the brim off the long, straight edges of your 3D prints. We find it easier to use than an Exacto knife, because the blade doesn't dig into the plastic print as easily. The swivel head makes...

Please read our returns policy regarding electronic items Original Prusa Einsy RAMBo Mainboard Includes: Einsy RAMBo with MK3S/+ firmware (1 pcs)Plug Aligner plastic part (1 pcs)ATO Blade fuses 5A (rated for 32 VDC) (2 pcs)ATO Blade fuse 15A...

Please read our returns policy regarding electronic items Einsy RAMBo Board for Prusa 3D Printers This Einsy board is made by UltiMachine in the USA. Comes with the selected firmware pre-loaded and is a direct swap replacement for the black &...

Revo Cable Set for Revo Six Prusa Edition Includes: Heater cable (1 pcs)Thermistor cable (1 pcs) Fits (fits below printers with the Revo Six hotend upgrade):Prusa MK2Prusa MK2SPrusa MK2.5Prusa MK2.5SPrusa MK3Prusa MK3SPrusa MK3S+

PB Select™ Idler Springs for Prusa Extruder Latch & MMU2S/3 Includes: Idler spring (2 pcs) Fits:MK2.5MK2.5SMK3MK3SMK3S+MiniMini+MMU2SMMU3 To replace this part, please consult the Prusa Assembly Manuals. Make sure to follow...

Flush Cut Trimmers Also called side cutters. We use these trimmers for cutting filament, removing supports and cleaning up prints.  Includes: Trimmers (1 pc)

Fuse Pack Replacement fuses for Einsy and RAMBo boards Includes:15 amp blade fuse (1 pcs)5 amp blade fuse (2 pcs) Fits:Prusa Einsy for MK3/S/+Prusa RAMBo Mini for MK2/S & MK2.5/SUltiMachine EinsyUltiMachine RAMBo Mini

2GT Timing Belt for Prusa Y axis Includes: Timing belt for Y axis (1 pcs) Specifications:Type: 2GTLength: 650 mmWidth: 6 mmPitch: 2 mm Fits:MK2MK2SMK2.5MK2.5SMK3MK3SMK3S+ To replace this part, please consult the Prusa Assembly Manuals. Make...

2GT Timing Belt for Prusa X Axis Includes: Timing belt (1 pcs) Specifications:Type: 2GTLength: 850 mmWidth: 6 mmPitch: 2 mm Fits:MK2MK2SMK2.5MK2.5SMK3MK3SMK3S+ To replace this part, please consult the Prusa Assembly Manuals. Make sure to follow...

PB Select™ Prusa Specific Titanium Heat Break High grade titanium helps eliminate heat-creep and is lighter than stainless steel. Similar to a standard E3D V6 heat break but with a special internal geometry for use with the...

E3D Prusa Specific Heat Break This is the heat break that comes stock on many Original Prusa 3D printers. Includes: Prusa specific heat break (1 pcs) Fits:MK2MK2SMK2.5MK2.5SMK3MK3SMK3S+MMU2MMU2S To replace this part, please consult the...

Slice Engineering Copperhead™ Heat Break for RepRap 3D Printers Bimetallic Heat Break™ -  W2S (Tungsten Disulfide) plated stainless steel and copper alloyRated to 450 °C For more documentation on the...

PB Select™ All Metal Heat Break Includes: Heat break (1 pcs) For 1.75mm filament only Fits:E3D V6 hotendE3D Volcano hotendRepRap hotendPrusa MK2/3 (all variants without MMU)INTAMSYS FUNMATE HT

PB Select™ Titanium Alloy Heat Break for RepRap and E3D V7 Style Hotend Includes: Heat break (1 pcs) Low thermal conductivityHelps eliminate heat creepTitanium creates a sharper thermal cutoff for a more consistent extrusion Extremely smooth...

 or  Prusa Specific Hotend Heater Cartridge (24 volt) Replacement hotend heater cartridge (E3D 24V 40W). Includes: Heater cartridge (1 pcs) Specifications:Voltage: 24VWattage: 40W Fits:MK3MK3SMK3S+ Notes:1. This heater cartridge...

  E3D Universal V6 1.75mm Heat Sink with Collet Designed to work with both Bowden and Direct Drive Hotends Includes:Heat sink for 1.75mm V6 Hotends (1 pcs)Collet with blue clip (1 pcs) Fits:E3D V6 HotendPrusa MK2/2.5/SPrusa MK3/S/S+

PB Select™ Black Heatsink for Nema17 Stepper Motor Heatsink in black anodized aluminum to remove heat from desired component.Equipped with self-adhesive on the back for easy attachment. Includes: Heatsink (1 pcs) Size: 40x40x10 mm

L-Shape Hex Wrench Size: 1.5mmLength: 78.5mmBrand: BONDHUS Made in the USA

Idler Pulley Includes: Idler Pulley (1pcs) Fits:MK2MK2SMK2.5MK2.5SMK3MK3SMK3S+MINIMINI+ To replace this part, please consult the Prusa Assembly Manuals. Make sure to follow the manual for your printer model.

PB Select™ Idler Pulley Includes: Idler pulley (1 pcs) Fits:MK2MK2SMK2.5MK2.5SMK3MK3SMK3S+MINIMINI+ To replace this part, please consult the Prusa Assembly Manuals. Make sure to follow the manual for your printer model.

Prusa IR Filament Sensor Includes: IR filament sensor (1 pcs)  Fits:MK2.5SMK3SMK3S+ Notes:This IR filament sensor is ONLY compatible with the MK2.5S, MK3S and MK3S+. It is not compatible with the MK2.5 and MK3.The IR filament...

PB Select™ Kapton & Aluminum Tape Used to attach the thermistor to the heated bed on Prusa and other 3D printers. Includes:Kapton Tape - adhesive backed, approximately 4x4 inches (1 pcs)Aluminum Tape...

  Prusa Compatible LCD Screen Black (Dark Blue) background with white text - see images below. Includes:LCD screen with SD card reader (1 pcs)Connector cable (2 pcs) Fits:Prusa MK2Prusa MK2SPrusa MK2.5Prusa MK2.5SPrusa MK3Prusa MK3SPrusa...

  Prusa Compatible LCD Screen This screen has blue background with white text like the Original Prusa screens. Includes:LCD screen with SD card reader (1 pcs)Connector cable (2 pcs) Fits:Prusa MK2Prusa MK2SPrusa MK2.5Prusa MK2.5SPrusa MK3Prusa...

Leadscrew Trapezoid Nut - Prusa Compatible This POM leadscrew nut from LDO Motors is comparable to the OEM part.  Includes: Trapezoid nut (1 pcs) Specifications:Material: POM / AcetalThread: Tr8x8 Fits:MK2MK2SMK2.5MK2...

Bondtech LGX™ X-Carriage Prusa MK3S This LGX™ X-carriage is required to install the Bondtech LGX for MK3S & Mosquito Includes: SLS X-Carriage Front (1 pcs)SLS X-Carriage Rear (1 pcs)M3x10 Screws (5 pcs)M3 square nut (5 pcs)M3...

MYT™ LM8UU Precision Linear Bearings Includes: Linear bearing (4 pcs) Specifications:ID: 8mmOD: 15mmL: 24mm Fits:Flashforge Creator Pro (Y Axis)Prusa MK2/SPrusa MK2.5/SPrusa MK3/S/+Prusa MINI/+Robo R1/+Anet A8Anet A8 PlusOther printers...

Prusa Lubricant Applicator Set Includes: Lubricant 5g (1 pcs)Applicator (1 pcs) After a certain period of time (see the 3D Printing Handbook), your printer should be cleaned and greased in order to work properly. More information including...

M2™ Hardened High Speed Steel RepRap/E3D Compatible Nozzle The M2 nozzles are designed for high temperatures, abrasion resistance and with superior non-stick properties. Nozzles are machined from M2 high speed steel, hardened and tempered...

PB Select™ M3 Stainless Steel Square Nuts These thin square nuts work in many applications that require a thinner (1.75mm) square nut. Including E3D Hemera Stepper Motors, Prusa Printers and Bondtech Extruders. Includes: Square Nut (10 pcs)...

PB Select™ Brass Nozzle This premium brass nozzle will provide a smooth consistent print. Includes: Nozzle of selected size (1 pcs) For: 1.75mm diameter filament Fits:Prusa MK2Prusa MK2SPrusa MK2.5Prusa MK2.5SPrusa MK3Prusa...

Micro-Swiss E3D Compatible Nozzle, Plated A2 Tool Steel, M6 Threads  Note: This nozzle is not compatible with the E3D Silicone Pro Sock. Use the standard silicone sock for this nozzle. This RepRap style nozzle is made...

PB select™ Ball & Magnets for Prusa Filament Runout Sensor Includes:19x6x2mm magnet (1 pcs)10x6x2mm magnet (2 pcs)7mm steel ball (1 pcs)

PB Select™ Heated Bed Assembly - 24 volt Notes:1. NOT compatible with the MK2/2.5 or MINI.2. This is a Prusa compatible bed. If you want the Original Prusa bed, please click here.3. Flexible spring steel sheet NOT...

Prusa 24 Volt Heated Bed Assembly This is a replacement (MK52 24 volt) magnetic heatbed. ONLY compatible with the MK3 and MK3S/+. Includes:Magnetic heatbed MK52 24 volt (1 pcs)Heatbed-Einsy power cable (screw-attached) (1 pcs)Heatbed...

Molex™ Terminal Block Connector for Prusa Printers Includes: Molex connector - 15 amp (1 pcs)Screws (2 pcs) Used for hotend heater cartridge:MK2/SMK2.5/SMK3/S/+MINI/+) Used for heatbed heater:MK2/SMK2.5/S Used for PSU:MK2/SMK2.5/S To...

Nozzle Coat™  Nozzle Coat is a water-based PTFE nano coating for your nozzle & heater block. Using Nozzle Coat will help reduce the amount of plastic that sticks to the exterior of your nozzle & heater block. Includes:...

PB Select™ Preset Torque Wrench  Includes:Preset Torque wrench (1 pcs)Bit holder FDM printed in POP Green ASA (1 pcs)1/4 inch socket adapter (1 pcs)6mm socket (1 pcs)7mm socket (1 pcs)8mm socket (1 pcs) Notes:Use on a clean...

Nozzle Wrench Handy little wrench for removing nozzles. Includes: Wrench (1 pcs) Sizes: 7.0 mm (RepRap, E3D Etc) 5.5 mm5.0 mm4.5 mm (Sidewinder X3 Pro/Max) Fits:E3D V6 Nozzles7mm RepRap NozzlesArtillery Sidewinder X3 Pro/MaxBondtech...

Genuine Bondtech Drive Gear Set for Prusa 3D Printers Comes as a set consisting of a primary drive gear, a secondary gear, bearings and shaft. Includes: Bondtech gear with a grub screw (1 pcs)Bondtech gear without a grub screw (1 pcs)Bearings (2...

Prusa PEI-Ultem sheet Notes: 1. This is NOT the Spring steel sheet with smooth double-sided PEI.2. Tiny dots may appear on the PEI-Ultem surface. These can slightly affect the finished print bottom surface. However, they do not...

PEI Print Surface - 260x242mm Includes: PEI sheet with 3M adhesive backing (1 pcs) Notes:1. This is NOT the Prusa spring steel sheet with smooth double-sided PEI (Link).2. Tiny dots may appear on the PEI surface. These can slightly...

PB Select™ Prusa Compatible V2 P.I.N.D.A Probe Includes: V2 PINDA (1 pcs) Fits:MK2.5MK2.5SMK3MK3S To test your current PINDA probe, follow this guide from the Prusa Knowledge Base.

Prusa MMU2S-Einsy power cable Replacement MMU2S to Einsy power cable.  Includes: Cable (1 pcs) Fits:MK3 with MMU2SMK3S with MMU2SMK3S+ with MMU2S Note: Only compatible with the MK3/S/+. NOT compatible with MK2.5/S printers. To...

Power Supply Cord AC power cord that runs from the power supply to a USA type wall outlet  Includes: Power cord (1 pcs) Note: Power supply is not included

Prusa PSU - 24 Volts This is the replacement power supply unit ONLY. It does NOT come with any cables. Buy the MK3 PSU kit here.  Includes: Power supply unit (1 pcs) Specifications:Voltage: 24VDCWattage: 240WCurrent (MAX): 10AFuse:...

Prusa MK3 Power Supply Assembly Replacement Power supply unit 24V 240W (assembly). It is ONLY compatible with MK3/S/+. The PSU itself is also available separately, without any cables or fasteners. Includes:Power supply unit 24V...

PB Select™ Prusa PSU Holder Nut - 2 Pack Nickel plated M3nE nut. Used to secure the PSU to the t-slot rail. Includes: M3nE Nut (2 pcs) Fits:MK2.5MK2.5SMK3MK3SMK3S+MK4MINIMINI+ To replace this part, please consult the Prusa Assembly Manuals...

Prusa Hotend PTFE Tube This is the replacement hotend PTFE tube. Includes: Hotend PTFE tube (1 pcs) Note: This is only compatible with the MK2.5S, MK3S and MMU2S hotends. It is not compatible with the MK2.5, MK3 and MMU2 hotends...

4mm Push Fit Collet (Collar) High quality replacement push fit collet with metal teeth.  Includes: Collet (1 pcs)  Fits: Bondtech ExtrudersE3D V6 HotendE3D Revo SixE3D Revo MicroE3D Revo CRPrusa i3 series Only fits: 4 mm PTFE Tube...

PB Select™ Hardware Kit Includes:M3x16 - fan to fan duct (4 pcs)M3x10 pan head - to clamp heater (2 pcs)M3x4 set screw for thermistor (2 pcs)M2 hex wrench (1 pcs)M1.5 hex wrench (1 pcs) For:E3D V6Prusa i3RepRap

Revo™ High Flow Brass Nozzle The Revo High Flow Nozzle increases your setup's volumetric flow rate, enabling you to print faster. Revo High Flow maintains the exact same form factor as standard Revo Hotends. This means there is no need...

Revo™ Brass Nozzle Single Nozzle Includes: Revo nozzle of selected size (1 pcs)ORTriple pack includes: 1 each of 0.25, 0.60 & 0.80mm nozzles Fits: All E3D Revo hotends Notes: - You may need to adjust your Z offset when changing...

Revo Coldside Only - For Prusa MK2 and MK3 Series  Notes:  This is not a complete upgrade kit, this is the coldside only.You will also need to purchase a hotside pack if you do not already have one (see links below). Includes:1 x Revo Six...

Revo™ HeaterCore (With 104NT Thermistor) Includes:Heater cartridge/thermistor (1pcs)Spring (1 pcs)Silicone boot (1 pcs) Notes: Choose the correct voltage and wattage for your application.Before installing please read the HeaterCore wiring...

Revo Starter Pack - 24 Volt  Note 1:  Please take care when making your product selection.The 104NT (E3D) comes with an E3D 104NT thermistor.The 100K (Creality) comes with a Creality specific HeaterCore and is not compatible with other...

Revo High Flow or High Flow X Hotside Pack - 24 Volt, 60 Watt  Note:  These hotsides come with an integrated E3D 104NT thermistor. Make sure this is the correct thermistor for your printer before ordering. This is not a...

Revo™ ObXidian Nozzles The Revo ObXidian is specifically designed for printing fibre-filled polymers. ObXidian’s copper alloy construction has a similar thermal performance to Brass, making it a true drop-in replacement. Just use the...

Revo™ Silicone Sock Pack - Full Color Pack Includes:Pink (1 pcs)Yellow (1 pcs)Red (1 pcs)Blue (1 pcs)Green (1 pcs)Black (1 pcs)Purple (1 pcs)Orange (1 pcs)HeaterCore sock (1 pcs) Fits: E3D Revo Nozzles...

Heatsink for Revo™ Six Includes:Heatsink (1 pcs)Collet (1 pcs)Collet clip (1 pcs)

Revo™ Silicone Sock Pack Includes:Yellow (2 pcs)Red (2 pcs)Blue (2 pcs)Green (2pcs)HeaterCore socks (2pcs) Fits: E3D Revo Nozzles and HeaterCore

Revo™ Spring Triple Pack Includes: Revo spring (3 pcs) These retention springs clip onto your Revo HeaterCore on one side, before connecting to any Revo-compatible cold side on the other – including the Revo Micro, Revo Six, and Revo...

Screwdriver PH2 Screwdriver with a PH2 head. PH2 is the recommended standard for the screws used on Original Prusa Printers. Includes: Screwdriver (1 pcs) Specifications:Red Hand: PlasticScrewdriver length L1: 160 mmShank length...

Prusa MMU2S-Einsy/Rambo signal cable Replacement MMU2S-Einsy/Rambo signal cable Includes: Cable (1 pcs) Fits the following printers with MMU2S:MK2.5SMK3MK3S To replace this parts, please consult the Prusa Assembly Manuals. Make sure to follow...

PB Select™ V6 Silicone Sock The primary purpose of a silicone sock is to help keep your hotend at a more consistent temperature, reducing the amount of times your heater needs to cycle. As an added benefit, the silicone sock will keep filament...

PB Select™ V6 Silicone Sock The primary purpose of a silicone sock is to help keep your hotend at a more consistent temperature, reducing the amount of times your heater needs to cycle. As an added benefit, the silicone sock will keep filament...

Sock-X for E3D Revo Nozzle Nozzle not included This premium silicone sock uses a small air gap to lower the convection heat from the nozzle and can handle printing temps of up to 300c. Designed specifically for the E3D Revo Nozzle...

Sock-X for E3D Revo Nozzles Nozzle not included This premium silicone sock uses a small air gap to lower the convection heat from the nozzle and can handle printing temps of up to 300c. The primary purpose of a silicone sock is to help...

Sock-X for E3D Revo Nozzles Nozzle not included This premium silicone sock uses a small air gap to lower the convection heat from the nozzle and can handle printing temps of up to 300c.  The primary purpose of a silicone sock is to...

Sock-X for E3D Revo Nozzles Nozzle not included This premium silicone sock uses a small air gap to lower the convection heat from the nozzle and can handle printing temps of up to 300c.  The primary purpose of a silicone sock is to...

Sock-X for E3D Revo Nozzles Nozzle not included This premium silicone sock uses a small air gap to lower the convection heat from the nozzle and can handle printing temps of up to 300c.  The primary purpose of a silicone sock is to...

Sock-X for E3D Revo Nozzles Nozzle not included This premium silicone sock uses a small air gap to lower the convection heat from the nozzle and can handle printing temps of up to 300c. The primary purpose of a silicone sock is to help...

Sock-X  Heater block and nozzle not included This premium silicone sock can handle printing temps of up to 300c. Designed specifically for E3D V6 style hotends.  The primary purpose of a silicone sock is to help keep your hotend at a more...

Sock-X  Heater block and nozzle not included This premium silicone sock can handle printing temps of up to 300c. Designed specifically for E3D V6 style hotends. The primary purpose of a silicone sock is to help keep your hotend at a more...

Sock-X for E3D Revo Nozzles Nozzles not included This premium silicone sock uses a small air gap to lower the convection heat from the nozzle and can handle printing temps of up to 300c. Designed specifically for the E3D Revo Nozzle. These...

PB Select™ Smooth Linear Rod - X Axis Includes: Linear rod (1 pc) Specifications:Length: 370 mmDiameter: 8mmG6 high precisionGcr15 steelHRC62 chrome plated Location: X axis Fits:MK2MK2SMK2.5MK2.5SMK3MK3SMK3S+MK4

PB Select™ Smooth Linear Rod - Y Axis Includes: Linear rod (1 pc) Specifications:Length: 330 mmDiameter: 8mmG6 high precisionGcr15 steelHRC62 chrome plated Location: Y axis Fits:MK2MK2SMK2.5MK2.5SMK3MK3SMK3S+MK4