16GB 2933MHZ DDR4 ECC CL21 SODIMM 1RX8 HYNIX AKingston ValueRAM 16GB DDR4 SDRAM Memory Module 16 GB DDR4 2933 PC4 23400 DDR4 SDRAM 2933 MHz Single rank Memory CL21 1. 20 V ECC Unbuffered 260 pin SoDIMM Lifetime Warranty VPN: KSM29SES8 16HA SKU: RSC491030 UPC: 740617321272 16 GB of memory to maintain symmetry with processor and hard drive and bring out the ultimate computing experience 2933 MHz memory speed for great multitasking capability DDR4 SDRAM interface multiplexes 2 bit data from memory