Mushkin Silverline 16GB (2 x 8GB) DDR4 PC4-17000 2133MHz Desktop Memory Model MSL4U213FF8G18X2 at Amazon.com
Lenovo 8GB DDR4 2133Mhz ECC SoDIMM Memory at Amazon.com
A-Tech 8GB Replacement for HP 797258-581 - DDR4 2133MHz PC4-17000 ECC Unbuffered UDIMM 2rx8 1.2v - Single Server Memory Ram Stick (797258-581-ATC) at Amazon.com
Amazon.com: Corsair CMK8GX4M2A2133C13R Vengeance LPX 8GB DDR4 DRAM 2133MHz C13 Memory Red Kit for Systems : Everything Else
MemoryMasters 840817-001 - 8GB PC4-17000 DDR4-2133MHz 2Rx8 1.2v Non-ECC UDIMM (Equivalent to OEM PN # 840817-001) at Amazon.com
A-Tech 8GB Replacement for HP 759934-B21 - DDR4 2133MHz PC4-17000 ECC Registered RDIMM 2rx8 1.2v - Single Server Memory Ram Stick (759934-B21-ATC) at Amazon.com
FMB-I Compatible with M471A1G43DB0-CPB Replacement for 8gb Pc4-17000 Ddr4-2133mhz Memory at Amazon.com