RAM & Memory Upgrades
32GB (2 x 16GB) DDR3 1600MHz PC3-12800 240-PIN ECC REGISTERED DIMM (RDIMM) MEMORY RAM KIT COMPATIBLE WITH SERVERS/WORKSTATIONS/MOTHERBOARDS (*NOT FOR PCs*) (4 RANK KIT CHIPKILL)
SIZE/CAPACITY: 32GB KIT (2 x 16GB) VOLTAGE/POWER CONSUMPTION: 1.5v CAS LATENCY: CL11 SPEED: PC3-12800 (1600MHz) TYPE/INTERFACE: 240-PIN DDR3 ECC REGISTERED DIMM (RDIMM) (2 RANK ADVANCED ECC/CHIPKILL) 240-PIN DDR3 ECC REGISTERED DIMM
https://www.bizrate.co.uk/ram_memoryupgrades/32gb-2-x-16gb-ddr3-oid4868586617.html