HP 16GB 4Rx4 PC3-8500R-7 Kit

4GB DDR3-1333 ECC DIMM CL9 R2 UNBUFFERED 1.35V

HP 8GB 2Rx4 PC3-10600R-9 Kit (RDIMM) - remarket

Lenovo 4 GB, DDR4, 2400 MHz, Notebook, Registered No, ECC Yes

Lenovo 4 GB, DDR4, 2400 MHz, PC/Server, Registered No, ECC No

8GB DDR3-1333 ECC DIMM CL9 R2 UNBUFFERED 1.35V

Kingston's KSM26RD8/16HAI is a 2G x 72-bit (16GB) DDR4-2666 CL19 SDRAM (Synchronous DRAM) registered w/ parity, 2Rx8, ECC, memory module, based on eighteen 1G x 8-bit FBGA components. The SPD is programmed to JEDEC standard latency DDR4-2666 timing of 19-19-19 at 1.2V. Each 288-pin DIMM uses gold contact fingers. 

KINGSTON 8GB 2666MHz DDR4 ECC Reg CL19 DIMM 1Rx8 Hynix A IDT

HP 32GB 4Rx4 PC3-14900L-13 Kit - remarket

Lenovo 8 GB, DDR4, 2400 MHz, PC/Server, Registered No, ECC No

Lenovo 8 GB, DDR4, 2400 MHz, Notebook, Registered No, ECC Yes

Lenovo 16 GB, DDR4, 2666 MHz, Notebook, Registered No

Dell 16 GB, DDR4, 2400 MHz, PC/server, Registered No, ECC Yes, (PowerEdge 13G: R230,R330,T130,T330)

Lenovo 16 GB, DDR4, 2400 MHz, Notebook, Registered No, ECC No

Dell 16 GB, DDR4, 2666 MHz, PC/server, Registered Yes, ECC Yes, (PowerEdge 14G: R440,R640,R740,T440; 13G: R430,R530,R630,R730,T430,T630)