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  3. DDR4 ECC RAM

DDR4 ECC RAM

Shop drives at US IT Hardware — every drive sold by exact manufacturer part number, so it seats in your server or array and is recognized on the first boot. We stock New, Refurbished and Recertified units from HPE, Dell, Seagate, Western Digital, Samsung, Micron and more — filter by the specs that matter or search the exact part number. Every drive is health-tested and warranty-backed, ships fast from the US, and purchase orders are welcome — use the bulk-quote link on any product for volume pricing or a compatibility check.

DDR4 speeds and the platforms that use them

DDR4 ECC modules are sold by JEDEC speed (MT/s) and PC4 bandwidth name. A module runs at the slowest speed the CPU, the board and the population allow.

SpeedPC4 namePeak bandwidth / moduleTypical platforms
DDR4-2133PC4-1700017.0 GB/sXeon E5 v3 (Haswell-EP), early Gen9 / 13G servers
DDR4-2400PC4-1920019.2 GB/sXeon E5 v4 (Broadwell-EP), Gen9 / 13G
DDR4-2666PC4-2130021.3 GB/s1st-gen Xeon Scalable (Skylake-SP), EPYC 7001, Gen10 / 14G
DDR4-2933PC4-2340023.5 GB/s2nd-gen Xeon Scalable (Cascade Lake), EPYC 7002, Gen10 / 14G
DDR4-3200PC4-2560025.6 GB/s3rd-gen Xeon Scalable (Ice Lake), EPYC 7002/7003, Gen10 Plus / 15G

Faster modules are backward compatible within DDR4 - a 3200 module runs at 2666 on a 2666 platform.

Reading the rank: 1Rx4, 2Rx4, 2Rx8, 4Rx4

The rank code on a DDR4 module describes how the DRAM chips are organised. The number before R is the rank count (independent 64-bit groups the controller addresses in turn); x4 or x8 is the width of each chip. 1Rx4 and 2Rx4 are the common RDIMM layouts; 2Rx8 uses more, narrower chips and is typical for 8GB-16GB parts; 4Rx4 and 8Rx4 appear on high-capacity LRDIMMs.

Rank matters for two reasons: platforms cap the total ranks per channel (often 8), and mixing ranks in a channel forces the slowest configuration. For a full population, buy modules with the same rank, speed and manufacturer - or send us the server model and we assemble a matched set.

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

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

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4081 parts

Part #BrandCapacityTypeSpeedRankECCConditionAvailabilityPrice
AB128183

AB128183 - Dell 16GB DDR4 2666MHz ECC RDIMM Memory Module

Dell
16GB
DDR4
2666 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$305.00

AB614353

AB614353 - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

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

$650.00

A8711889

A8711889 - Dell 32GB DDR4 2400MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
2400 MHz
Quad Rank x4
ECC
New
Check availability

$362.00

4X77A77496

4X77A77496 - Lenovo 32GB DDR4 3200MHz ECC UDIMM 1.2V 288-Pin Memory

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

$1,188.00

AB128271

AB128271 - Dell 32GB DDR4 2933MHz ECC RDIMM Memory Module

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

$430.00

AA601615

AA601615 - Dell 64GB DDR4 2933MHz ECC RDIMM Memory Module

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

$838.00

4X77A08632

4X77A08632 - Lenovo 16GB DDR4 3200MHz ECC RDIMM Memory Module

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

$505.00

A9810562

A9810562 - Dell 16GB DDR4 2666MHz ECC RDIMM Memory Module

Dell
16GB
DDR4
2666 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$258.00

03GX998

03GX998 - Lenovo 64GB DDR4 3200MHz ECC RDIMM Memory Module

Lenovo
64GB
DDR4
3200 MHz
Dual Rank
ECC
Refurbished
Check availability

$1,308.00

02JK973

02JK973 - Lenovo 128GB DDR4 3200MHz ECC RDIMM 1.2V 288-Pin Memory

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

$2,170.00

4X71B67862

4X71B67862 - Lenovo 64GB DDR4 3200MHz ECC RDIMM Memory Module

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

$1,308.00

A8718891

A8718891 - Dell 64GB DDR4 2133MHz ECC RDIMM Memory Module

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

$535.00

127T6

127T6 - Dell 16GB DDR4 2933MHz ECC RDIMM Memory Module

Dell
16GB
DDR4
2933 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$530.00

A9810569

A9810569 - Dell 64GB DDR4 2666MHz ECC RDIMM Memory Module

Dell
64GB
DDR4
2666 MHz
Quad Rank x4
ECC
Refurbished
Check availability

$598.00

AA601616

AA601616 - Dell 32GB DDR4 2933MHz ECC RDIMM Memory Module

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

$430.00

54PVT

54PVT - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

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

$592.00

AA720441

AA720441 - Dell 16GB DDR4 2666MHz ECC RDIMM Memory Module

Dell
16GB
DDR4
2666 MHz
Dual Rank x8
ECC
Refurbished
Check availability

$272.00

01KR354

01KR354 - Lenovo 16GB DDR4 2933MHz ECC RDIMM Memory Module

Lenovo
16GB
DDR4
2933 MHz
Dual Rank x8
ECC
New
Check availability

$270.00

AB128249

AB128249 - Dell 32GB DDR4 2666MHz ECC RDIMM Memory Module

Dell
32GB
DDR4
2666 MHz
Dual Rank x4
ECC
Refurbished
Check availability

$462.00

AB786567

AB786567 - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

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

$592.00

4Y61T

4Y61T - Dell 32GB DDR4 2933MHz ECC RDIMM Memory Module

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

$430.00

AC621115

AC621115 - Dell 32GB DDR4 3200MHz ECC RDIMM Memory Module

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

$622.00

AC606050

AC606050 - Dell 16GB DDR4 3200MHz ECC Memory Module

Dell
16GB
DDR4
3200 MHz
-
ECC
New
Check availability

$542.00

02JG339

02JG339 - Lenovo 32GB DDR4 3200MHz ECC RDIMM Memory Module

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

$600.00

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