2X(1. Adopted of high quality electronic components, and accuracy process, for the durability 2. Single capacity and DDR3 1600Mhz operating frequency 3. particles make the product run more stable 4. Professional and stable performance, easy to use 5. Dedicated to server memory, support workstations, single, dual, multi-way motherboards, etc. Item Type: Server Ram Capacity: 16GB Type: DDR3 240Pin RECC Memory. Speed: PC3-12800 1600Mhz Compatible Motherboard: Support dual CPU motherboard, single CPU motherboard But support special single- motherboards Fit for Some modified or brushed BOIS motherboards, modified X58 and X79 motherboards Compatible Platform: (such as 1366 2011 platform, X58 X79) (only part, need to confirm before buying) Different batches, product appearance and color may be different, does not affect the use color:Green Material:PCB size:13.3 x 3CM Package Contents: 1 x Ram Memory)