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Eight green DDR4 RDIMM modules in anti-static packaging

OWC

OWC 256GB (8x32GB) DDR4 2133 PC4-17000 CL15 2Rx4 288-pin ECC Registered RDIMM memory upgrade

SKU CH-ZR0V-YK0EB

Eight 32 GB DDR4-2133 ECC registered RDIMMs totalling 256 GB for Cisco UCS M2814 compute cartridges

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 256GB (8 x 32GB)

  • ECC registered design protects data integrity in servers
  • 256 GB kit with eight 32 GB modules maximises capacity
  • DDR4 2133 CL15 at 1.2 V balances speed and efficiency
  • 288-pin RDIMM form factor fits Cisco UCS M2814 cartridge
  • Replaces Cisco part numbers for guaranteed compatibility

256GB ECC Registered RDIMM Kit

This OWC kit provides 256GB of DDR4 2133 registered ECC memory across eight 32GB modules. It is built for the Cisco UCS M2814 Compute Cartridge and uses 288-pin RDIMMs with CL15 latency at 1.2V. The 2Rx4 organisation and registered buffer suit server and workstation platforms that require error correction.

Server builders only

This memory suits administrators upgrading or populating a Cisco UCS M2814 Compute Cartridge with validated registered ECC DIMMs. It will not work in standard desktop PCs or consumer motherboards that accept only unbuffered non-ECC modules. Buyers needing unbuffered memory or load-reduced DIMMs must choose a different product type.

256GB across eight 32GB modules

The capacity is delivered as eight 32GB RDIMMs, giving a single part number for a full 256GB configuration. This kit matches Cisco part numbers including 15-103025-01 and UCSMR1X322RUA for direct replacement. Verify the cartridge's maximum supported capacity and slot count before purchase.

How it compares

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

Price $1,586.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $6.20 per GB
Cheaper than about 63% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R1D42R4256K
Total capacity256 GB (8 × 32 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco UCS M2814 Compute Cartridge

Other versions of this model

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Questions about this item

Does my Cisco UCS M2814 Compute Cartridge need all eight slots populated for this 256GB kit to work?

The kit contains eight 32GB modules; the cartridge must accept eight 288-pin DDR4 ECC registered DIMMs running at 2133 MHz and 1.2V for the full 256GB to be recognised.

Can I keep my existing Cisco UCS memory and add this 2Rx4 CL15 kit alongside it?

This registered ECC memory cannot be mixed with unbuffered or load-reduced DIMMs; all installed modules must be registered ECC of the same rank and voltage to avoid errors.

How do I verify the kit is running at PC4-17000 CL15 after installation?

Check the system BIOS or management console — it should report 2133 MT/s, CAS latency 15, 1.2V and registered ECC status for each of the eight 32GB DIMMs.

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