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Server RAM & Memory

Server memory — the ECC, buffered DIMMs that keep production hosts stable. This hub covers our full range of enterprise RAM sold by exact manufacturer part number: DDR3, DDR4 and DDR5, ECC Registered (RDIMM) and Load-Reduced (LRDIMM), across 8GB through 512GB capacities and the common speeds, from Micron, Samsung, SK Hynix and the HPE and Dell OEM-serialized parts your iLO or iDRAC expects. Filter by capacity, brand and condition, or jump to a capacity page below. We list New and Refurbished stock together so you can compare a factory module against a tested pull for the same slot. Server memory is unforgiving about rank, voltage and OEM keying, so match your platform's population rules — or use the bulk-quote link and we'll confirm the part against your exact server model. Fast US shipping, warranty-backed, purchase orders welcome.

Shop by module capacity

16GB32GB64GB128GB256GB512GB

RDIMM, LRDIMM or UDIMM: which DIMM type do you need?

Server memory comes in three buffered/unbuffered designs. A server accepts only the type its population rules list, and RDIMM and LRDIMM can never be mixed in one system.

RDIMM (Registered)
A register buffers the address and command lines, so the memory controller sees one load per DIMM. The standard choice for most 16GB-64GB modules in ProLiant, PowerEdge, ThinkSystem and Supermicro servers.
LRDIMM (Load-Reduced)
Buffers the data lines as well, which lets a channel carry more, larger modules at full speed. Used for 64GB-512GB high-density builds where total capacity matters more than per-module cost.
UDIMM / ECC UDIMM (Unbuffered)
No register - the controller drives the chips directly. Found in entry servers, workstations and micro-servers (Xeon E, some AMD platforms) with two DIMMs per channel at most. Not interchangeable with RDIMM.

New vs Recertified vs Refurbished

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.

New
Factory-sealed and unused, with the full manufacturer warranty. The safest choice for a fresh build or a warranty-sensitive deployment.
Recertified
OEM-recertified and restored to original specification, typically with low power-on hours. Health-tested and backed by our own replacement warranty — the same usable capacity for a lower price.
Refurbished
Professionally tested working pulls, wiped and inspected. A cost-effective option for labs, cold storage and non-critical tiers, warranty-backed.

Not sure which to pick? Read our New vs Recertified vs Refurbished guide.

Frequently asked questions

What's the difference between New, Recertified and Refurbished drives?+

New is factory-sealed with the full manufacturer warranty. Recertified is OEM-restored to specification with low power-on hours and our own warranty — the same capacity for a lower price. Refurbished is a tested, wiped working pull. All are sold by exact part number and warranty-backed.

Do you accept purchase orders and volume pricing?+

Yes — we ship fast from the US and welcome POs. For quantity or a matched set, use the bulk-quote link on any product for pricing and a compatibility check.

Related collections

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11879 parts

Part #BrandCapacityTypeSpeedRankECCConditionAvailabilityPrice
MEM-DR464L-CL02-ER32

MEM-DR464L-CL02-ER32 - Supermicro 64GB DDR4 3200MHz ECC RDIMM Memory

Supermicro
64GB
DDR4
3200 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$1,308.00

KSM26RD4/32HDI

KSM26RD4/32HDI - Kingston 32GB DDR4 2666MHz ECC RDIMM 288-Pin Memory

Kingston
32GB
DDR4
2666MHz
Dual Rank x4
ECC Registered
New
Check availability

$1,195.00

KSM26ED8/16HD

KSM26ED8/16HD - Kingston 16GB DDR4 2666MHz CL19 ECC UDIMM Memory

Kingston
16GB
DDR4
DDR4-2666/PC4-21300
Dual Rank x8
ECC
New
Check availability

$310.00

A9365698

A9365698 - Dell 16GB DDR4 2400MHz ECC RDIMM Memory Module

Dell
16GB
DDR4
2400 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$145.00

370-AELS

370-AELS - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
3200 MHz
Dual Rank x4
ECC
New
Check availability

$868.00

4ZC7A15125

4ZC7A15125 - Lenovo 128GB DDR4 3200MHz ECC RDIMM Memory Module

Lenovo
128GB
DDR4
3200 MHz
Quad Rank x4
ECC
Refurbished
Check availability

$2,170.00

4X77A77033

4X77A77033 - Lenovo 64 GB DIMM Registered RAM

Lenovo
64GB
DDR5
DDR5-4800/PC5-38400
Dual Rank
ECC
Refurbished
Check availability

$3,710.00

370-AELJ

370-AELJ - Dell 64GB DDR4 3200MHz ECC RDIMM Memory Module

Dell
64GB
DDR4
3200 MHz
Dual Rank x4
ECC
New
Check availability

$1,738.00

P31373-001

P31373-001 - HPE 128GB DDR4 3200MHz ECC DCPMM Memory Module

HPE
128GB
DDR4
3200 MHz
-
ECC
Refurbished
Check availability

$1,232.00

FX622AAR-P

FX622AAR-P - HP 8GB DDR3 1333MHz CL9 ECC RDIMM Memory Module

HP
8GB
DDR3
1333MHz
Dual Rank x4
ECC
Refurbished
Check availability

$162.00

FX622A-RF

FX622A-RF - HP 8GB DDR3 1333MHz CL9 ECC RDIMM Memory Module

HP
8GB
DDR3
1333MHz
Dual Rank x4
ECC
Refurbished
Check availability

$162.00

MEM-DR464L-CL01-ER29

MEM-DR464L-CL01-ER29 - Supermicro 64GB DDR4 2933MHz ECC RDIMM Memory

Supermicro
64GB
DDR4
2933 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$795.00

AC606048

AC606048 - Dell 32GB DDR4 3200MHz ECC UDIMM Memory Module

Dell
32GB
DDR4
3200 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$998.00

P06191-001

P06191-001 - HPE 128GB DDR4 2933MHz ECC RDIMM Memory Module

HPE
128GB
DDR4
2933 MHz
Octal Rank x4
ECC
New
Check availability

$1,358.00

P41238-B21

P41238-B21 - HPE 16GB DDR4 3200MHz ECC RDIMM Memory Module

HPE
16GB
DDR4
3200 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$258.00

P06032-B21

P06032-B21 - HPE 16GB DDR4 3200MHz ECC RDIMM Memory Module

HPE
16GB
DDR4
3200 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$258.00

MEM-DR432L-CL02-ER29

MEM-DR432L-CL02-ER29 - Supermicro 32GB DDR4 2933MHz ECC RDIMM Memory

Supermicro
32GB
DDR4
2933 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$475.00

4YPPH

4YPPH - Dell 16GB DDR3 1333MHz ECC RDIMM Memory Module

Dell
16GB
DDR3
1333 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$62.00

P06029-K21

P06029-K21 - HPE 16GB DDR4 3200MHz ECC RDIMM Memory Module

HPE
16GB
DDR4
3200 MHz
Single Rank x4
ECC
Refurbished
Check availability

$250.00

HF6GX

HF6GX - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
3200 MHz
Dual Rank x4
ECC
New
Check availability

$862.00

74FPM

74FPM - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
3200 MHz
Dual Rank x4
ECC
New
Check availability

$862.00

AB214252

AB214252 - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
3200 MHz
Dual Rank x4
ECC
New
Check availability

$868.00

AB675798

AB675798 - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
3200 MHz
Dual Rank x8
ECC
New
Check availability

$1,035.00

370-AEXZ

370-AEXZ - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
3200 MHz
Dual Rank x4
ECC
New
Check availability

$868.00

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