Buy Kingston KSM26SES8/16MF 16GB DDR4 Memory Module Brand: Kingston Capacity: 16GB DDR4 SDRAM Type: DDR4-2666/PC4-21333 Speed: 2666 MHz Rank: Single-rank CAS Latency (CL): CL19 Voltage: 1.20 V Error Correction: ECC (Error-Correcting Code) Buffering: Unbuffered Form Factor: 260-pin SoDIMM Compatibility: For Notebook, Server, Workstation, and Motherboard Warranty: Lifetime Warranty