Patriot Memory, Llc PVE248G400C0 Patriot Memory Viper Elite II DDR4 8GB (1 x 8GB) 4000MHz Single Module - 8 GB (1 x 8GB) - DDR4-4000/PC4-32000 DDR4 SDRAM - 4000 MHz - CL20 - 1.40 V - Retail - Non-ECC - Unbuffered - 288-pin - DIMM - Lifetime Warranty

Patriot Memory Viper Elite II DDR4 8GB (1 x 8GB) 4000MHz Single Module - 8 GB (1 x 8GB) - DDR4-4000/PC4-32000 DDR4 SDRAM - 4000 MHz - CL20 - 1.40 V - ...