Hynix Original 16GB kit (2 x 8GB), 240-pin DIMM,Unbuffered, Non ECC, DDR3 PC3-12800 Desktop Memory Module at Amazon.com
Amazon.com: SK Hynix 16GB 2Rx4 PC3L 10600R 1333MHZ HMT42GR7MFR4A IBM P/N 78P1915 Compatible with IBM Flex System p24L Compute Node, Power 7 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D System Parts : Electronics
A-Tech 16GB Replacement for Hynix HMA82GU7MFR8N-TF - DDR4 2133MHz PC4-17000 ECC Unbuffered UDIMM 2rx8 1.2v - Single Server Memory Ram Stick (HMA82GU7MFR8N-TF-ATC) at Amazon.com
SK Hynix 16GB PC4-2133P HMA42GR7MFR4N-TF Memory at Amazon.com