Kingston Server Premier 32GB DDR5 5600 MT/s ECC Unbuffered DIMM, CL46, 2Rx8, 1.1V, Micron H-die

The Kingston Server Premier KSM56E46BD8-32MH is a 32GB DDR5-5600 ECC unbuffered DIMM (UDIMM) with CL46 timings at 1.1V, for entry servers and workstations whose platform specifies DDR5 ECC UDIMM memory. It is organised as dual-rank x8 (2Rx8) with twenty Micron DRAM chips.

Unlike desktop DDR5, which only has on-die ECC, this module adds true sideband ECC (x72, two 36-bit sub-channels) so the memory controller can detect and correct errors — the reason servers and storage boxes use it. Kingston locks the DRAM supplier and die revision (Micron, H-die) for this part number, which keeps future orders consistent when you expand a fleet.

• 1 x Kingston Server Premier 32GB DDR5-5600 ECC UDIMM (KSM56E46BD8-32MH)

• Systems that support ECC UDIMM can correct single-bit memory errors on the fly — important for file servers, NAS builds and virtual machines that run 24/7.
• The fixed Micron H-die "DRAM Lock" means modules bought months apart match the ones already installed.
• In a platform rated below 5600 MT/s the module runs at the lower supported speed.
• No heatspreader: it is designed for server airflow, and at 31.25 mm tall it suits 1U and 2U chassis.

• It does not work in RDIMM (registered) servers such as most dual-socket Xeon Scalable or EPYC 9004 systems.
• It is not a gaming module — no XMP or EXPO profile and no heatspreader.
• Many consumer desktop boards accept the module but ignore ECC; you only get error correction if the CPU and board support it.
• It does not fit laptops or SO-DIMM slots.