Adopted of high quality electronic components, and accuracy process, for the durabilityparticles make the product run more stable design and stable performance, easy to use Capacity:4GBSpeed: DDR4 2666MhzNumber of Pins: 288 pinsType: Desktop MemoryVoltage: DDR4 1.2VDDR4 type:PC4-17000 = DDR4 2133MHZPC4-19200 = DDR4 2400MHZPC4-21300 = DDR4 2666MHZPC4-22400 = DDR4 2800MHZPC4-24000 = DDR4 3000MHZPC4-26400 = DDR4 3300MHZPC4-26600 = DDR4 3333MHZDifferent batches, product appearance and color may be different, does not affect the useColour:blackMaterial: PCBSize:13.3x3CMPackage Contents:1 x MemoryOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.