Genuine OEM enterprise drives · Fast US shipping · POs welcome
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
M393A2G40EB1-CTD - Samsung 16GB DDR4 2666MHz CL19 ECC RDIMM Memory
M393A5143DB0-CPB2Q - Samsung 4GB DDR4 2133MHz CL15 ECC RDIMM Memory
CT32G4LFQ424A.36DA2 - Crucial 32GB DDR4 2400MHz CL17 ECC RDIMM Memory
CT32G4LFD424A.36FB1 - Crucial 32GB DDR4 2400MHz CL17 ECC RDIMM Memory
M386A4K40BB1-CRC5Q - Samsung 32GB DDR4 2400MHz CL17 ECC RDIMM Memory
HMA451R7AFR8N-UH - Hynix 4GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
CT32G4RFD4266.36FE1 - Crucial 32GB DDR4 2666MHz CL19 ECC RDIMM Memory
J9P82AA - HP 8GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
HMA42GL7MFR4N-TF - Hynix 16GB DDR4 2133MHz CL15 ECC RDIMM Memory
CT8G4RFS4213.18FA2 - Crucial 8GB DDR4 2133MHz CL15 ECC RDIMM Memory
M393A5143DB0-CRC4Q - Samsung 4GB DDR4 2400MHz CL17 ECC RDIMM Memory
CT32G4RFD4266-2G6D1 - Crucial 32GB DDR4 2666MHz CL19 ECC RDIMM Memory
CT32G4LFQ4213 - Crucial 32GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
M393A5143DB0-CPB20 - Samsung 4GB DDR4 2133MHz CL15 ECC RDIMM Memory
CT8G4RFS824A - Crucial 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
M393A5143DB0-CPB00 - Samsung 4GB DDR4 2133MHz CL15 ECC RDIMM Memory
HMA451U7MFR8N-TF - Hynix 4GB DDR4 2133MHz CL15 ECC UDIMM Memory Module
CT8G4RFD824A - Crucial 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
CT8G4RFD8213 - Crucial 8GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
HMAA8GL7CPR4N-XN - Hynix 64GB DDR4 3200MHz CL22 ECC RDIMM Memory
CT4G4RFS8213.9FA2 - Crucial 4GB DDR4 2133MHz CL15 ECC RDIMM Memory
CT8G4RFS4213 - Crucial 8GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
CT8G4WFD824A - Crucial 8GB DDR4 2400MHz CL17 ECC UDIMM Memory Module
CT32G4RFD424A - Crucial 32GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
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