HMT31GR7AFR4C DDR3 1333MHz PC3-10600 240-Pin Registered ECC 1.5V CL=9 Dual Rank 2Rx4 based 512x4 JEDEC standard 1.5V (1.425V ~ 1.575V) Power Supply. Module Size: 16GB Package: 2x8GB for SERVERs, Not for Desktop PCs/Laptop Additional Details ------------------------------ Package quantity: 1