OWC 8GB DDR4 2133MHz CL15 1.2V 288pin UDIMM memory upgrade

Compatible HP ProDesk upgrade

This 8GB DDR4 module is built for HP ProDesk 400 G3 SFF, 400 G3 Tower, 490 G3, 600 G2 SFF and 600 G2 Tower systems. It targets owners of those desktops who need a straightforward capacity increase without configuration changes. The unbuffered, non-ECC design matches the original factory specification for these platforms.

Sustained-load behaviour

Rated at 2133MHz with CL15 latency and 1.2V operation, the module delivers steady throughput during long work sessions. JEDEC compliance ensures timing and voltage remain stable when the system runs continuously under multi-tasking loads. The 2Rx8 organisation supports consistent bandwidth without throttling.

Installation experience

The 288-pin UDIMM form factor drops into the standard desktop DIMM slots on the listed ProDesk models. No heat spreader means the module fits tight SFF chassis without clearance issues. The most common mistake is mixing this stick with existing modules of different speed or rank, which can prevent the system from posting.