16GB DDR4-2666 ECC Rdimm
Axiom Upgrades Part# AX42666R19B/16G
RAM Modules – RAM Module - 1.20 V Memory Voltage - DDR4-2666/PC4-21300 - DDR4 SDRAM - CL19 - 16 GB Memory Size - RDIMM - 2666 MHz Memory Speed - ECC - 288-pin Pins - Registered - Lifetime
4GB DDR3 PC3-10600 CL9 1333
VisionTek Part# 900379
RAM Modules – TAA Compliant – RAM Module - Performance - 1.50 V Memory Voltage - DDR3-1333/PC3-10600 - DDR3 SDRAM - CL9 - 4 GB Memory Size - DIMM - 1333 MHz Memory Speed - Desktop PC - Non-ECC - 240-pin Pins - Unbuffered - Mexico ...