Specifications: Model:Intel 1150 plastic ,for AMD metal,775 metal ,1366 series metal,for INTEL 1150 series metal,AM4 metal Material : Plastic, Metal Color : As pictures show Quantity: 1PC Backplate for 775 1150 2011 for INTEL for AMD AM4 Motherboard CUP cooler fan. A good replacement part for computer. Note: for INTEL 1150 Series Plastic Back Sheet: Available on the IN150 platform of the 1150 1151 1155 1156 series with fixed thread M3 for AMD metal backplane: for AMD platform other than 771 series, including AM2 AM3 AM2+ AM3+, fixed thread is 6#-32 775 metal back plate: only for 775 platform, fixed thread is M3 1366 series metal back: It can be used for 1366 and 2011 platforms. Please note that if you need a motherboard without original backplane, you can use it. The fixing thread is M3, so please select 3mm or m3 for fixing screws. for INTEL 1150 series metal back plate: can be used for IN150 platform of 1150 1151 1155 1156 series, fixed thread is M3 Package includes: (Without retail package) 1 x CPU Heatsink Bracket(Without Screw )