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
00NV207 - Lenovo 64GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$545.00
46W0831 - Lenovo 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$195.00
00FM013 - Lenovo 32GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
$280.00
46W0832 - Lenovo 32GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$362.00
00XH001 - Lenovo 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$190.00
01AG618 - Lenovo 16GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
$190.00
46W0825 - Lenovo 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$280.00
46W0827 - Lenovo 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$298.00
4X70G88311 - Lenovo 32GB DDR4 2133MHz RDIMM ECC Memory Module
$305.00
01DE970 - Lenovo 32GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$362.00
46W0821 - Lenovo 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$162.00
753225-S21 - HPE 32GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
$215.00
774173-001 - HPE 16GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
$162.00
Q2D31A - HPE 16GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
$265.00
836220-S21 - HPE 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$170.00
870840-001 - HPE 16GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
$245.00
851353-B21 - HPE 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$180.00
853287-091 - HPE 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$180.00
P00423-B21 - HPE 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module
$235.00
868845-001 - HPE 128GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
$1,428.00
839985-B21 - HPE 32GB DDR4 2133MHz CL15 ECC RDIMM Memory Module
P06185-001 - HPE 32GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
P05590-B21 - HPE 32GB DDR4 2666MHz CL19 ECC RDIMM Memory Module
874540-001 - HPE 16GB DDR4 2666MHz CL19 ECC NVDIMM Memory Module
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