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Four green 240-pin DDR3L ECC RDIMM modules with black chips

OWC

OWC 128GB (4x32GB) DDR3L 1333 ECC RDIMM Cisco UCS B440 M2

SKU CH-RBN4-C7YSF

A 128GB DDR3L 1333 ECC registered RDIMM kit of four 32GB modules for Cisco UCS B440 M2 servers

  • Capacity128GB (4 x 32GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1333 (PC3L 10600)
  • CAS LatencyCL9
  • Voltage1.35V
  • ECCYes

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules
  • DDR3L 1333 MHz CL9 for reliable server throughput
  • ECC registered design detects and corrects memory errors
  • Low 1.35 V DDR3L voltage reduces power draw
  • Validated for Cisco UCS B440 M2 blade servers

System-specific upgrade kit

This OWC kit provides 128GB of DDR3L ECC registered memory in four 32GB modules. It is built for the Cisco UCS B440 M2 blade server and runs at 1333MHz with CL9 latency at 1.35V. The 240-pin RDIMMs use a 4Rx4 organisation and replace Cisco part UCSMR2X324RXC.

Server and workstation administrators only

The modules suit technicians maintaining or expanding a Cisco UCS B440 M2 platform that requires registered ECC DDR3L memory. They will not function in standard desktop computers, consumer laptops, or any system that expects unbuffered or load-reduced DIMMs. Builders needing a different form factor or voltage should select another kit.

Registered ECC DDR3L at 1.35V

The single decisive attribute is the combination of registered ECC operation and 1.35V DDR3L signalling. Only systems designed for PC3L-10600 registered modules can accept this kit; mixing with unbuffered or load-reduced memory is not supported.

Points forts

  • 128 GB total capacity from four 32 GB modules
  • DDR3L 1333 MHz CL9 for reliable server throughput
  • ECC registered design detects and corrects memory errors
  • Low 1.35 V DDR3L voltage reduces power draw
  • Validated for Cisco UCS B440 M2 blade servers

Caractéristiques

BrandOWC
Part Number1R3T34R4128S
Capacity128GB (4 x 32GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1333 (PC3L 10600)
CAS LatencyCL9
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B440 M2

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Questions sur cet article

What does DDR3L 1333 PC3L-10600 mean for real-world bandwidth?

The modules run at 1333 MT/s with a peak transfer rate of 10600 MB/s; CL9 latency and registered buffering determine actual throughput in the Cisco UCS B440 M2.

Will these 240-pin 1.35 V RDIMMs fit the Cisco UCS B440 M2 memory slots?

Yes — each 32 GB stick is a 240-pin DDR3L ECC registered DIMM at 1.35 V, matching the B440 M2 slot keying and voltage requirement.

What installation step is often missed when populating all four slots?

Follow the B440 M2 population order in the server manual; skipping the prescribed sequence can prevent the system from recognising the full 128 GB.

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