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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
47J0169

47J0169 - IBM 8GB DDR3 1600MHz CL11 ECC RDIMM Memory Module

IBM
8GB
DDR3
1600MHz
Dual Rank x4
ECC
Refurbished
Check availability

$132.00

47J0221

47J0221 - IBM 8GB DDR3 1866MHz CL13 ECC RDIMM Memory Module

Showing 481-504 of 11,879

IBM
8GB
DDR3
1866MHz
Single Rank x4
ECC
New
Check availability

$192.00

47J0236

47J0236 - IBM 16GB DDR3 1866MHz CL13 ECC VLP RDIMM Memory Module

IBM
16GB
DDR3
1866MHz
Dual Rank x4
ECC
Refurbished
Check availability

$288.00

47J0244

47J0244 - IBM 32GB DDR3 1866MHz CL13 ECC RDIMM Memory Module

IBM
32GB
DDR3
1866MHz
Quad Rank x4
ECC
Refurbished
Check availability

$138.00

38L5913

38L5913 - IBM 4GB RDIMM 184-Pin Memory Module

IBM
4GB
DDR
400MHz
Single Rank x4
ECC
New
Check availability

$160.00

46C7488

46C7488 - IBM 8GB DDR3 1066MHz CL7 ECC VLP RDIMM Memory Module

IBM
8GB
DDR3
1066MHz
Quad Rank x8
ECC
New
Check availability

$165.00

30R5146

30R5146 - IBM 4GB RDIMM 240-Pin Memory Module

IBM
4GB
DDR2
400MHz
Dual Rank x4
ECC
New
Check availability

$155.00

44T1493

44T1493 - IBM 4GB DDR3 1333MHz CL9 ECC RDIMM Memory Module

IBM
4GB
DDR3
1333MHz
Dual Rank x4
ECC
Refurbished
Check availability

$132.00

46W0676

46W0676 - IBM 32GB DDR3 1600MHz CL11 ECC RDIMM Memory Module

IBM
32GB
DDR3
1600MHz
Quad Rank x4
ECC
New
Check availability

$505.00

47J0158

47J0158 - IBM 16GB DDR3 1333MHz CL9 ECC VLP RDIMM Memory Module

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

$190.00

46W0712

46W0712 - IBM 16GB DDR3 1866MHz ECC VLP RDIMM 1.5V 240-Pin Memory

IBM
16GB
DDR3
1866MHz
Dual Rank x4
ECC
Refurbished
Check availability

$280.00

44T1580

44T1580 - IBM 8GB DDR3 1066MHz CL7 ECC VLP RDIMM Memory Module

IBM
8GB
DDR3
1066MHz
Dual Rank x4
ECC
Refurbished
Check availability

$165.00

46W0761

46W0761 - IBM 32GB DDR3 1866MHz CL13 ECC RDIMM Memory Module

IBM
32GB
DDR3
1866MHz
Quad Rank x4
ECC
Refurbished
Check availability

$138.00

46W0714

46W0714 - IBM 16GB DDR3 1866MHz CL13 ECC RDIMM Memory Module

IBM
16GB
DDR3
1866MHz
Dual Rank x4
ECC
Refurbished
Check availability

$270.00

47J0225

47J0225 - IBM 16GB DDR3 1866MHz CL13 ECC RDIMM Memory Module

IBM
16GB
DDR3
1866MHz
Dual Rank x4
ECC
New
Check availability

$192.00

46C7489

46C7489 - IBM 16GB DDR3 1066MHz CL7 ECC RDIMM Memory Module

IBM
16GB
DDR3
1066MHz
Quad Rank x4
ECC
Refurbished
Check availability

$310.00

46W0708

46W0708 - IBM 8GB DDR3 1600MHz CL11 ECC VLP RDIMM Memory Module

IBM
8GB
DDR3
1600MHz
Dual Rank x8
ECC
Refurbished
Check availability

$195.00

46W0678

46W0678 - IBM 32GB DDR3 1600MHz CL11 ECC RDIMM Memory Module

IBM
32GB
DDR3
1600MHz
Quad Rank x4
ECC
New
Check availability

$498.00

47J0222

47J0222 - IBM 8GB DDR3 1600MHz CL11 ECC RDIMM Memory Module

IBM
8GB
DDR3
1600MHz
Single Rank x4
ECC
New
Check availability

$260.00

47J0139

47J0139 - IBM 16GB DDR3 1066MHz CL7 ECC RDIMM Memory Module

IBM
16GB
DDR3
1066MHz
Quad Rank x4
ECC
Refurbished
Check availability

$132.00

46W0670

46W0670 - IBM 16GB DDR3 1866MHz CL13 ECC RDIMM Memory Module

IBM
16GB
DDR3
1866MHz
Dual Rank x4
ECC
New
Check availability

$185.00

44T1579

44T1579 - IBM 8GB DDR3 1066MHz CL7 ECC VLP RDIMM Memory Module

IBM
8GB
DDR3
1066MHz
Dual Rank x4
ECC
Refurbished
Check availability

$138.00

47J0224

47J0224 - IBM 8GB DDR3 1600MHz CL11 ECC RDIMM Memory Module

IBM
8GB
DDR3
1600MHz
Dual Rank x4
ECC
New
Check availability

$280.00

46C7483

46C7483 - IBM 16GB DDR3 1066MHz CL7 ECC RDIMM Memory Module

IBM
16GB
DDR3
1066MHz
Quad Rank x4
ECC
Refurbished
Check availability

$310.00

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