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  1. Home/
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  3. DDR4 ECC Server Memory

DDR4 ECC Server Memory

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.

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 does ECC actually do?+

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.

Registered (RDIMM) vs Load-Reduced (LRDIMM) DDR4?+

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.

Will DDR4 ECC work in my desktop?+

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.

Related collections

64GB Server RAM (ECC)32GB Server Memory (RDIMM / LRDIMM)128GB Server Memory (LRDIMM / 3DS RDIMM)

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4081 parts

Part #BrandCapacityTypeSpeedRankECCConditionAvailabilityPrice
L15416-501

L15416-501 - HP 16GB DDR4 2933MHz CL21 ECC RDIMM Memory Module

HP
16GB
DDR4
2933MHz
Single Rank x4
ECC
Refurbished
Check availability

$445.00

A7945660

A7945660 - Dell 16GB DDR4 2133MHz CL15 ECC RDIMM Memory Module

Dell
16GB
DDR4
2133MHz
Dual Rank x4
ECC
Refurbished
Check availability

$185.00

HP24D4R7D4MAM-32

HP24D4R7D4MAM-32 - Kingston 32GB DDR4 2400MHz CL17 ECC RDIMM Memory

Kingston
32GB
DDR4
2400MHz
Dual Rank x4
ECC
New
Check availability

$348.00

P11441-191

P11441-191 - HP 8GB DDR4 3200MHz CL22 ECC RDIMM Memory Module

HP
8GB
DDR4
3200MHz
Single Rank x8
ECC
New
Check availability

$195.00

KSM24RS8/8HDI

KSM24RS8/8HDI - Kingston 8GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

Kingston
8GB
DDR4
DDR4-2400/PC4-19200
Single Rank x8
ECC
New
Check availability

$180.00

P09415-001

P09415-001 - HPE 32GB DDR4 2933MHz CL21 ECC RDIMM Memory Module

HPE
32GB
DDR4
2933MHz
Dual Rank
ECC
Refurbished
Check availability

$408.00

P20499-001

P20499-001 - HPE 8GB DDR4 3200MHz CL22 ECC RDIMM Memory Module

HPE
8GB
DDR4
3200MHz
Single Rank x8
ECC
New
Check availability

$195.00

KCPC7G-MIA

KCPC7G-MIA - Kingston 32GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

Kingston
32GB
DDR4
DDR4-2400/PC4-19200
Dual Rank x4
ECC
New
Check availability

$348.00

KSM24RD4/32HDI

KSM24RD4/32HDI - Kingston 32GB DDR4 2400MHz CL17 ECC RDIMM Memory

Kingston
32GB
DDR4
DDR4-2400/PC4-19200
Dual Rank x4
ECC
New
Check availability

$348.00

KSM24RD8/16HDI

KSM24RD8/16HDI - Kingston 16GB DDR4 2400MHz CL17 ECC RDIMM Memory

Kingston
16GB
DDR4
DDR4-2400/PC4-19200
Dual Rank x8
ECC
New
Check availability

$235.00

5YZ56AA

5YZ56AA - HP 8GB DDR4 2933MHz CL21 ECC RDIMM Memory Module

HP
8GB
DDR4
2933MHz
Single Rank x8
ECC
New
Check availability

$452.00

869365-001

869365-001 - HP 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

HP
16GB
DDR4
2400MHz
Single Rank x4
ECC
Refurbished
Check availability

$195.00

7X77A01307

7X77A01307 - Lenovo 128GB DDR4 2666MHz CL19 ECC RDIMM Memory Module

Lenovo
128GB
DDR4
2666MHz
Octal Rank x4
ECC
New
Check availability

$1,182.00

02JG338

02JG338 - Lenovo 32GB DDR4 3200MHz CL22 ECC RDIMM Memory Module

Lenovo
32GB
DDR4
DDR4-3200/PC4-25600
Dual Rank x4
ECC
New
Check availability

$685.00

01PE924

01PE924 - Lenovo 128GB DDR4 2666MHz CL19 ECC DCPMM Memory Module

Lenovo
128GB
DDR4
DDR4-2666/PC4-21300
-
ECC
New
Check availability

$260.00

809081-M81

809081-M81 - HP 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

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

$195.00

P02972-001

P02972-001 - HP 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

HP
16GB
DDR4
DDR4-2400/PC4-19200
Dual Rank x4
ECC
Refurbished
Check availability

$195.00

KSM32RS4/32HCR

KSM32RS4/32HCR - Kingston 32GB DDR4 3200MHz CL22 ECC RDIMM Memory

Kingston
32GB
DDR4
3200MHz
Single Rank x4
ECC
New
Check availability

$768.00

P22322-88M

P22322-88M - HP 16GB DDR4 3200MHz CL22 ECC RDIMM Memory Module

HP
16GB
DDR4
3200MHz
Dual Rank x4
ECC
Refurbished
Check availability

$288.00

78P4889

78P4889 - IBM 16GB DDR4 2400MHz CL17 ECC RDIMM Memory Module

IBM
16GB
DDR4
DDR4-2400/PC4-19200
Single Rank x4
ECC
New
Check availability

$272.00

P31607-001

P31607-001 - HP 16GB DDR4 3200MHz CL22 ECC RDIMM Memory Module

HP
16GB
DDR4
3200MHz
Dual Rank x4
ECC
Refurbished
Check availability

$288.00

P14397-B21

P14397-B21 - HP 16GB DDR4 3200MHz CL22 ECC RDIMM Memory Module

HP
16GB
DDR4
3200MHz
Dual Rank x4
ECC
Refurbished
Check availability

$288.00

02JG517

02JG517 - Lenovo 16GB DDR4 2666MHz CL19 ECC RDIMM Memory Module

Lenovo
16GB
DDR4
2666MHz
Dual Rank x8
ECC
New
Check availability

$245.00

01KR360

01KR360 - Lenovo 16GB DDR4 2666MHz CL19 ECC UDIMM Memory Module

Lenovo
16GB
DDR4
2666MHz
Dual Rank x8
ECC
New
Check availability

$360.00

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