AddOn HP 872969-001 Comp 8GB DDR4-2666MHZ ECC SRX8 Rdimm

4GB DDR3 1600MHZ 2RX8 ECC UDIMM Factory Original DIMM Addon

AddOn Part# AM1600D3DR8EN/4G

Various Memory – TAA Compliant – RAM Module - DDR3-1600/PC3-12800 - DDR3 SDRAM - 4 GB Memory Size - DIMM - 1600 MHz Memory Speed - Server - ECC - Unbuffered - United States - 1.5" Width - Lifetime - 300 mil Thickness

8GB Kit 2X4GB 1333MHZ DDR3 240-Pin Rdimm ECC Dr LP Factory Orig

AddOn Part# AM1333D3DRLPR8GKIT

Various Memory – TAA Compliant – RAM Module - DDR3-1333/PC3-10660 - DDR3 SDRAM - 8 GB Memory Size - DIMM - 1333 MHz Memory Speed - Server - ECC - 240-pin Pins - Registered - United States - OEM - 2 x 4GB Modules - Lifetime - JEDEC

2GB DDR3-1600MHZ PC12800 204PIN Low Power 1.35V SODIMM F/Laptops

AddOn Part# AA160D3SL/2G

Various Memory – RAM Module - 1.35 V Memory Voltage - DDR3-1600/PC3-12800 - DDR3 SDRAM - 2 GB Memory Size - SoDIMM - 1600 MHz Memory Speed - Notebook - 204-pin Pins - HP - EliteBook 820 G1 - Lifetime