ITEM NAME:Copper Base North Bridge Water Cooling Block PC CPU Liquid Waterblock Cooler Product Description Description: Copper Base North South Bridge Water Block Cooler Hole Spacing 51mm-63mm with Screws North South Bridge Water Cooling Block Liquid Cooling Waterblock for Hole Pitch 51-63mm Features: 1. It is a necessary for DIY mainframe water cooling system, glass north and south water colling block, cooling and heat dissipation. 2. Do not support hard pipe joint. 3. Fixed pitch: 51MM-63MM pitch, suitable for most of the motherboard, but does not mean that all motherboards are applicable. 4. If you need to determine, recommends that customers used in measuring the motherboard from the north and South Bridge. Specifications: Baseplate Material: Copper Base Upper cover: Transparent acrylic Process treatment: transverse 0.5MM of floor cutting gap Baseplate thickness: 3MM ±0.05MM Cover plate thickness: 8MM ±0.05MM Size: approx. 70mm*31mm ±2%/2.75*1.22'' ±2% Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 x Water Cooling Block 2 x Screws.North South Bridge Water Cooling Block Liquid Cooling Waterblock for Hole Pitch 51-63mm. Baseplate Material: Copper Base. Included: 1 x Water Cooling Block. Do not support hard pipe joint. Cover plate thickness: 8MM ±0.05MM.