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Eight green DDR4 ECC registered DIMMs in anti-static tray

OWC

OWC 128GB (8x16GB) DDR4 2400 CL17 ECC Registered RDIMM memory upgrade

SKU CH-CA8T-9AB1R

128 GB DDR4-2400 CL17 ECC registered kit with eight 16 GB RDIMMs for Cisco UCS B260 M4 and B460 M4 servers

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 128GB (8 x 16GB)

  • ECC registered design protects data integrity in servers
  • 128 GB total capacity across eight 16 GB modules
  • DDR4 2400 CL17 at 1.2 V for efficient performance
  • 288-pin RDIMM form factor fits Cisco UCS B260 M4 and B460 M4
  • Replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG

Server-grade memory kit

This OWC kit supplies 128GB of DDR4 ECC Registered memory across eight 16GB modules. It is built for Cisco UCS B260 M4 E7 v4 and B460 M4 E7 v4 servers that require registered DIMMs with error correction. Standard desktop boards cannot use this memory.

288-pin registered DIMMs

Each module uses the 288-pin DDR4 form factor and runs at 1.2V with a CL17 latency at 2400 MT/s. The registered design places a buffer on the command bus, which reduces electrical load on the memory controller in multi-DIMM server configurations. No heat spreaders are fitted, so airflow in the chassis must be sufficient for dense populations.

Eight-module population kit

The package delivers a matched set of eight 16GB sticks, allowing a single-order fill of eight slots in the supported Cisco platforms. It replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG. Mixing these registered modules with unbuffered or load-reduced ECC memory is not supported.

How it compares

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

Price $800.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.26 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 number2R4D41R4128K
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco UCS B260 M4 E7 v4
Cisco UCS B460 M4 E7 v4

Other versions of this model

5 more in the same range

Questions about this item

What speed does the DDR4 2400 PC4-19200 interface actually run at in this kit?

Each module operates at 2400 MHz with a PC4-19200 data rate and CL17 latency.

What physical slot and pin count do these 288-pin RDIMMs require?

They need a standard 288-pin DDR4 DIMM slot on a Cisco UCS B260 M4 E7 v4 or B460 M4 E7 v4 motherboard.

How are the eight 16 GB registered DIMMs installed, and what step is often missed?

Populate all eight slots following the server's channel guide; the common mistake is mixing these registered modules with unbuffered or load-reduced memory.

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