KINGSTON 4 GB 2666 MHz DDR4 Non-ECC CL19 DIMM 1Rx16 Capacity: 4 GB Type of expansion: Generic Width: 133 mm Height: 31.3 mm Weight: 9 g Type: DRAM Technology: DDR4 SDRAM Form factor: DIMM 288-PIN Module height (inches) 1.23 Speed: 2666 MHz (PC4-21300) Latency rates: CL19 (19-19-19) Data integrity check: Non-ECC Special features: Single Rank, On-Die Termination (ODT), Serial Presence Detect (SPD), 16x slot, Low-Power Auto Self Refresh (LPASR), unbuffered Module configuration: 512 x 64 Chip organisation: 512 x 16 Voltage: 1.2 V Metal plating: Gold