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Four green DDR4 ECC UDIMM modules with gold contacts

OWC

OWC 32GB (4x8GB) DDR4 2666 CL19 ECC UDIMM memory upgrade

SKU CH-76JD-5DRW8

Four 8 GB DDR4 2666 ECC UDIMM modules add 32 GB of error-correcting memory to PowerEdge R240, T140 and T40 systems

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 32GB (4 x 8GB)

  • 32 GB capacity from four 8 GB modules
  • ECC protection detects and corrects memory errors
  • DDR4 2666 CL19 speed with 1.2 V operation
  • 288-pin UDIMM fits PowerEdge R240 T140 T40
  • Backward compatible with 2133 MHz and 2400 MHz systems

OWC 32 GB DDR4 ECC kit

This OWC kit provides 32 GB of DDR4 ECC memory in four 8 GB UDIMM modules. It runs at 2666 MHz with CL19 latency and operates at the standard 1.2 V. The modules are unbuffered, single-rank 1Rx8 parts with 288-pin connectors. They are validated for Dell PowerEdge R240, T140 and T40 systems.

Suited for ECC-capable servers

The kit targets administrators upgrading PowerEdge R240, T140 or T40 platforms that require ECC UDIMM memory. It also works in other desktops, workstations or NAS units that accept DDR4 2666 ECC unbuffered DIMMs. Builders needing registered DIMMs, higher frequencies, larger capacities per module or non-ECC memory should look at different products.

2666 MHz DDR4 ECC speed

The decisive specification is the 2666 MHz DDR4 ECC unbuffered rating. Your system must support DDR4 ECC UDIMMs at this speed; the modules will down-clock to 2400 MHz or 2133 MHz if the platform requires it, but they will not function in boards that only accept registered memory or non-ECC memory.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $225.99
Cheaper than about 57% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $7.06 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2E6D41R8032S
Total capacity32 GB (4 × 8 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsPowerEdge R240
PowerEdge T140
PowerEdge T40

Other versions of this model

5 more in the same range

Questions about this item

Will the CL19 latency limit throughput on a Dell PowerEdge R240 running 24/7?

The modules run at DDR4 2666 with CL19 timing; latency is fixed by the JEDEC specification and does not change under sustained load.

How much heat and power do the 1.2 V unbuffered ECC DIMMs produce during all-day operation?

Each 8 GB stick operates at 1.2 V without a heat spreader; total kit power stays within standard DDR4 limits for unbuffered ECC UDIMMs.

Must the server already have four free 288-pin DDR4 slots to install this 4 x 8 GB kit?

Yes, the upgrade requires four available 288-pin DDR4 UDIMM slots; the kit is validated for PowerEdge R240, T140 and T40 platforms.

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