DDR4 ECC memory is the backbone of the current server fleet — Error-Correcting Code protects against single-bit faults, and Registered (RDIMM) or Load-Reduced (LRDIMM) buffering is what lets a server run many DIMMs stably. Every module here is server-grade DDR4 ECC, sold by exact manufacturer part number across 16GB, 32GB, 64GB and 128GB capacities and 2133 through 3200 MT/s speeds, from Micron, Samsung, SK Hynix and the HPE and Dell OEM-serialized parts your iLO or iDRAC expects. New and Refurbished stock sit together so you can compare a factory module against a tested pull for the same slot. ECC and buffering type must match your platform exactly — an unbuffered or non-ECC stick won't post in most servers — so confirm your population rules, or use the bulk-quote link and we'll pick the compatible part for your model. In stock, fast US shipping, warranty-backed, POs welcome.
Every part is sold by exact manufacturer part number and ships warranty-backed. Here's what each condition means so you can weigh price against your workload.
Not sure which to pick? Read our New vs Recertified vs Refurbished guide.
ECC (Error-Correcting Code) memory detects and corrects single-bit errors on the fly, preventing silent data corruption and crashes — which is why servers require it. Desktop (non-ECC) memory won't post in most server platforms.
Both are buffered ECC types for servers. RDIMM buffers address/command lines and covers most builds; LRDIMM also buffers data lines to reach higher capacity per channel. Use whichever your server's rules specify.
Generally no — most desktop boards need unbuffered non-ECC (or UDIMM ECC) memory and won't accept RDIMM/LRDIMM. These are server/workstation modules. Ask via the bulk-quote link if you're unsure about your board.
4081 parts
P03051-001 - HP 16GB DDR4 2933MHz CL21 ECC RDIMM Memory Module
$278.00
8SSM31D97924 - Lenovo 16GB DDR4 3200MHz CL22 ECC RDIMM Memory Module
P12501-001 - HP 16GB DDR4 3200MHz CL22 ECC RDIMM Memory Module
SNPM04W6C/16GDD - Dell 16GB DDR4 3200MHz CL22 ECC RDIMM Memory Module
SM30N76543 - Lenovo 16GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
4X77A08598 - Lenovo 32GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
AB675794 - Dell 8GB DDR4 3200MHz CL22 ECC UDIMM Memory Module
AC055060 - Dell 256GB DDR4 3200MHz CL22 ECC DCPMM Memory Module
SNP9D57RC/32G - Dell 32GB DDR4 3200MHz CL22 ECC UDIMM Memory Module
$910.00
880154-681 - HPE 16GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
HMA81GU7AFR8N-VK - Hynix 8GB DDR4 2666MHz CL19 ECC UDIMM Memory Module
HMA82GR8AFR8N-UH - Hynix 16GB DDR4 2400MHz CL17 ECC VLP RDIMM Memory
HMABAGR7A4R4N-UL - Hynix 128GB DDR4 2400MHz CL17 ECC RDIMM Memory
HMA82GU8CJR8N-VK - Hynix 16GB DDR4 2666MHz CL19 ECC UDIMM Memory
HMAA8GLCPR4N-XN - Hynix 64GB DDR4 3200MHz CL22 ECC RDIMM Memory Module
7082851 - Sun 32GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
A8797578 - Dell 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
A7946645 - Dell 16GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
A9810561 - Dell 8GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
$230.00
A9810566 - Dell 8GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
$230.00
A7910486 - Dell 4GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
A9810565 - Dell 128GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
A8526300 - Dell 8GB DDR4 2133MHz CL15 ECC UDIMM Memory Module
KSM29RD4/64HAR - Kingston 64GB DDR4 2933MHz CL21 ECC RDIMM Memory
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