The Danger Den - RBX is one of the best perfoming commercial blocks available

The RBX block is designed to give top performance to every water cooling person out there. The RBX block allows customization to get every last drop of performace from the processor. Compatible with the AMD Athlon 64 & Opteron 754/939/940 motherboards.

Includes:

• Complete Block Assembled with Top and O-ring
• #1 Accelerator Plate
• High Flow 1/2" or 3/8" OD Fittings
• Stainless Steel Hold Down for Athlon64 and Opteron Systems
• Including Poly barbed "Y"
• Machined Lapped and polished beyond 1200 grit
• Pressure tested before shipment to 85psi