We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR5 ECC RDIMM modules, 288-pin, no heat spreader

OWC

OWC 256GB (2x128GB) DDR5 4800 PC5-38400 CL40 4Rx4 288-pin 1.1V ECC Registered RDIMM memory upgrade

SKU CH-K7F2-84R8T

256 GB DDR5 ECC registered RDIMM kit for Dell Precision 5860 and 7960 workstations

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 256GB (2 x 128GB)

  • ECC registered design protects data integrity in workstations
  • 256 GB total capacity from two 128 GB modules
  • DDR5 4800 speed with CL40 latency and 1.1 V operation
  • Validated for Dell Precision 5860 5860XL 7960 7960XL towers and 7960 rack
  • JEDEC and RoHS compliant for warranty-safe upgrades

256GB DDR5 4800 ECC RDIMM Kit

This OWC memory kit provides 256GB of DDR5 4800 PC5-38400 CL40 registered ECC RDIMM capacity across two 128GB modules. It uses 288-pin 4Rx4 DDR5 technology operating at 1.1V. The kit is validated for Dell Precision Workstation 5860, 5860XL, 7960, 7960XL towers and the 7960 rack model.

Workstation and Server Upgrades Only

This registered ECC memory suits administrators expanding Dell Precision workstations or compatible servers requiring error-correcting registered DIMMs. It will not work in standard desktop computers that accept only unbuffered non-ECC modules. Builders needing unbuffered memory or load-reduced DIMMs must select a different memory type.

Registered ECC DDR5 Form Factor

The modules are 288-pin DDR5 registered ECC RDIMMs with a 4Rx4 organisation. This specific form factor and buffering type determines physical and electrical compatibility with the memory controller. Verify the target system requires registered ECC RDIMMs before purchase.

How it compares

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

Price $8,110.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $31.68 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number4R8D54R4256P
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell Precision Workstation 5860 Tower
Dell Precision Workstation 5860XL Tower
Dell Precision Workstation 7960 Rack
Dell Precision Workstation 7960 Tower
Dell Precision Workstation 7960XL Tower

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1.1 V DDR5 4800 RDIMM kit draw when the workstation runs all day?

Each module operates at 1.1 V, the standard DDR5 voltage, so total power scales with the 256 GB capacity and the 4800 MT/s data rate rather than any higher voltage.

What must the system already provide for these 288-pin ECC registered DIMMs to function?

A Dell Precision 5860, 5860XL, 7960 or 7960XL workstation with DDR5 RDIMM slots and a CPU memory controller that supports registered ECC at 4800 MT/s.

Can the 4Rx4 CL40 modules share channels with older DDR5 RDIMMs of different rank or speed?

They will run at the lowest common speed and the platform must support mixed 4Rx4 ranks; JEDEC compliance allows it, but the workstation BIOS determines the final configuration.

More in Model-Specific Memory Upgrades

Similar items