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
M393A4K40CB1-CRC - Samsung 32GB DDR4 2400MHz ECC RDIMM Memory Module
$355.00
M393A1G40DB0-CPB - Samsung 8GB DDR4 2133MHz ECC RDIMM Memory Module
$162.00
M393AAG40M32-CAECO - Samsung 128GB DDR4 3200MHz ECC RDIMM Memory
$1,985.00
M391A2G43BB2-CWEQY - Samsung 16GB DDR4 3200MHz ECC RDIMM Memory Module
$422.00
MTA72ASS8G72LZ-2G6R2 - Micron 64GB DDR4 2666MHz ECC DIMM Memory Module
$758.00
MTA36ASF8G72PZ-3G2E1TI - Micron 64GB DDR4 3200MHz ECC RDIMM Memory
$1,010.00
MTA36ASF8G72PZ-3G2B2VI - Micron 64GB DDR4 3200MHz ECC RDIMM Memory
$1,010.00
MTA18ASF2G72PDZ-3G2E1 - Micron 16GB DDR4 3200MHz ECC RDIMM Memory
MTA72ASS16G72LZ-3G2B2XI - Micron 128GB DDR4 3200MHz ECC RDIMM Memory
MTA36ASF8G72PZ-3G2B2TI - Micron 64GB DDR4 3200MHz ECC RDIMM Memory
$1,010.00
M386A8K40DM2-CVFB0 - Samsung 64GB DDR4 2933MHz ECC RDIMM Memory Module
$938.00
MTA18ASF4G72PDZ-3G2 - Micron 32GB DDR4 3200MHz ECC RDIMM Memory Module
$918.00
M393A4K40DB3-CWECY - Samsung 32GB DDR4 3200MHz ECC RDIMM Memory Module
$1,078.00
MTA18ASF4G72PDZ-3G2R - Micron 32GB DDR4 3200MHz ECC RDIMM Memory
$918.00
MTA9ASF2G72AZ-3G2B1R - Micron 16GB DDR4 3200MHz ECC UDIMM Memory
$1,528.00
MTA9ASF2G72PZ-3G2B1R - Micron 16GB DDR4 3200MHz ECC RDIMM Memory
$628.00
MTA9ASF2G72PZ-3G2F1R - Micron 16GB DDR4 3200MHz ECC RDIMM Memory
$628.00
MTA9ASF2G72PZ-3G2E1R - Micron 16GB DDR4 3200MHz ECC RDIMM Memory
$628.00
MTA9ASF2G72PZ-3G2R - Micron 16GB DDR4 3200MHz ECC RDIMM Memory Module
$628.00
M393A2K43DB2-CVFBQ - Samsung 16GB DDR4 2933MHz ECC RDIMM Memory Module
$295.00
MTA36ASF8G72PZ-2G9B1VI - Micron 64GB DDR4 2933MHz ECC RDIMM Memory
$650.00
MTA36ASF8G72PZ-2G9B1 - Micron 64GB DDR4 2933MHz ECC RDIMM Memory
$650.00
MTA36ASF8G72PZ-2G9B1UL - Micron 64GB DDR4 2933MHz ECC RDIMM Memory
$650.00
MTA36ASF8G72PZ-2G9B2 - Micron 64GB DDR4 2933MHz ECC RDIMM Memory
$650.00
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