Only for Intel. This memory is not compatible with ECC servers. Memory chip: 16 IC Type: DDR3 Desktop Function: Non-ECC Memory Socket: DIMM Frequency: PC3 12800/1600MHz Number of Pins: 240 pins Capacity: 4GB Voltage: 1.5V Unbuffered, Non-ECC, Non-Registered DDR3 1066 = PC3-8500 DDR3 1333 = PC3-10600 DDR3 1600 = PC3-12800 DDR for Desktop = 184 pins DDR for Laptop = 200 pins DDR2 for Desktop = 240 pins DDR2 for Laptop = 200 pins DDR3 for Desktop = 240 pins DDR3 for Laptop = 204 pins Due to different production batches, the appearance, color, and printed text on the product may vary slightly; this does not affect performance. Color: Random (no specific color guaranteed) Material: PCB Package Contents: 1 x RAM module Note: Other items shown in images are not included. Lighting conditions and display settings may cause slight variations in color between the product image and actual item. Measurement error allowance: +/- 1-3 cm.