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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
46W0833

46W0833 - Lenovo 32GB DDR4 2400MHz ECC RDIMM Memory Module

Lenovo
32GB
DDR4
2400 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$290.00

03T6779

03T6779 - Lenovo 8GB DDR4 2133MHz ECC RDIMM 1.2V 288-Pin Memory

Lenovo
8GB
DDR4
2133MHz
Single Rank x4
ECC
Refurbished
Check availability

$162.00

46W0835

46W0835 - Lenovo 32GB DDR4 2400MHz ECC RDIMM Memory Module

Lenovo
32GB
DDR4
2400 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$290.00

03T7861

03T7861 - Lenovo 8GB DDR4 2133MHz ECC RDIMM 1.2V 288-Pin Memory

Lenovo
8GB
DDR4
2133MHz
Single Rank x4
ECC
New
Check availability

$165.00

00NV207

00NV207 - Lenovo 64GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

Lenovo
64GB
DDR4
2400MHz
Quad Rank x4
ECC
New
Check availability

$545.00

46W0831

46W0831 - Lenovo 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

Lenovo
16GB
DDR4
DDR4-2400/PC4-19200
Dual Rank x4
ECC
New
Check availability

$195.00

01KN303

01KN303 - Lenovo 16GB DDR4 2400MHz ECC RDIMM 1.2V 288-Pin Memory

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

$195.00

7X77A01304

7X77A01304 - Lenovo 32GB DDR4 2666MHz ECC RDIMM Memory Module

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

$392.00

00NV205

00NV205 - Lenovo 32GB DDR4 2400MHz ECC RDIMM Memory Module

Lenovo
32GB
DDR4
2400 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$362.00

00FM013

00FM013 - Lenovo 32GB DDR4 2133MHz CL15 ECC RDIMM Memory Module

Lenovo
32GB
DDR4
2133MHz
Dual Rank x4
ECC
New
Check availability

$280.00

46W0832

46W0832 - Lenovo 32GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

Lenovo
32GB
DDR4
2400MHz
Dual Rank x4
ECC
Refurbished
Check availability

$362.00

7X77A01302

7X77A01302 - Lenovo 16GB DDR4 2666MHz ECC RDIMM 1.2V 288-Pin Memory

Lenovo
16GB
DDR4
2666MHz
Single Rank x4
ECC
Refurbished
Check availability

$245.00

7X77A01305

7X77A01305 - Lenovo 64GB DDR4 2666MHz ECC RDIMM Memory Module

Lenovo
64GB
DDR4
2666 MHz
Quad Rank x4
ECC
New
Check availability

$472.00

00XH001

00XH001 - Lenovo 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

Lenovo
16GB
DDR4
2400MHz
Dual Rank x4
ECC
New
Check availability

$190.00

4X70G88319

4X70G88319 - Lenovo 16GB DDR4 2400MHz ECC RDIMM 1.2V 288-Pin Memory

Lenovo
16GB
DDR4
2400MHz
Dual Rank x4
ECC
Refurbished
Check availability

$195.00

01KN301

01KN301 - Lenovo 16GB DDR4 2400MHz ECC RDIMM 1.2V 288-Pin Memory

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

$222.00

01AG618

01AG618 - Lenovo 16GB DDR4 2666MHz CL19 ECC RDIMM Memory Module

Lenovo
16GB
DDR4
2666MHz
Dual Rank x4
ECC
Refurbished
Check availability

$190.00

03GX397

03GX397 - Lenovo 32GB DDR5 4800MHz ECC RDIMM Memory Module

Lenovo
32GB
DDR5
4800 MHz
Dual Rank
ECC
Refurbished
Check availability

$1,615.00

95Y4814

95Y4814 - Lenovo 64GB DDR4 2133MHz ECC RDIMM 1.2V 288-Pin Memory

Lenovo
64GB
DDR4
2133MHz
Quad Rank x4
ECC
Refurbished
Check availability

$545.00

03KL461

03KL461 - Lenovo 32GB DDR5 4800MHz ECC RDIMM Memory Module

Lenovo
32GB
DDR5
4800 MHz
Dual Rank
ECC
Refurbished
Check availability

$2,195.00

46W0841

46W0841 - Lenovo 64GB DDR4 2400MHz ECC RDIMM 1.2V 288-Pin Memory

Lenovo
64GB
DDR4
2400MHz
Quad Rank x4
ECC
New
Check availability
Request quote
46W0825

46W0825 - Lenovo 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

Lenovo
8GB
DDR4
2400MHz
Dual Rank x8
ECC
New
Check availability

$280.00

01AG609

01AG609 - Lenovo 16GB DDR4 2400MHz ECC RDIMM 1.2V 288-Pin Memory

Lenovo
16GB
DDR4
2400MHz
Dual Rank x4
ECC
New
Check availability

$195.00

4X77A77483

4X77A77483 - Lenovo 32GB DDR5 4800MHz ECC RDIMM Memory Module

Lenovo
32GB
DDR5
4800 MHz
Dual Rank
ECC
New
Check availability

$2,278.00

Showing 121-144 of 11,879

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