Koolance will be closed Nov. 26-27th for the Thanksgiving holiday. Orders placed after 12PM Pacific on Wed., Nov. 25th will ship on Monday, Nov. 30th.close

MVR-40 Water Block (Motherboard VReg)

RoHS Certified
Availability: In Stock

Orders for UPS placed in the next 19 hours, 2 minutes ship on our next business day.
1 at $24.99
2 at $24.26
5 at $23.52
10+ at $22.79
Qty:   Add to Cart

   - OR -   
Add MVR Transfer Plate?
Add Fittings?

The MVR-40 is a universal water block for motherboard MOSFET-based voltage regulator circuits. Koolance offers various swappable cold plates for the MVR-40 to fit a wide variety of motherboard brands and models. Materials include copper with anti-corrosive nickel plating. G 1/4 BSPP fitting threading.

To determine which Koolance heat transfer plate is required for your motherboard, simply measure the length and width of the original thermal interface material for that area. Then, if available, select a heat transfer plate that roughly matches the length and width (to within about 2mm, or 1/16"). The heat transfer plate is screwed directly into the MVR-40, and both are mounted to the motherboard via swinging arms.

NOTE: If Koolance does not have the correct size of heat transfer plate for your motherboard, please let us know your required size. We will try to make one available if we receive sufficient demand. As a special note for ASUS owners, the MVR-40 with MVR-PLT72 is the combination which replaces the earlier Koolance VR-AS40 VReg cooling block.

Weight 0.25 lb (0.11 kg)
Materials Nickel-Plated Copper
Max Pressure @ 25°C 10kgf/cm2 (142.2psi)
Max Temperature 120°C (248°F)
Diagrams / Models (See Files Tab for Diagrams and 3D Models)

Liquid Coolants

Koolance's product warranty does not cover the use of 3rd-party coolants, coolant additives, or corrosion. Koolance LIQ-702 or LIQ-705 coolants are strongly recommended to help avoid issues with mixed metals or biological growth. Additionally, do not use aluminum with bare (unplated) copper or bare (unplated) brass in the same system. Do not use silver with nickel in the same system.