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Eight green 240-pin DDR3L ECC registered DIMMs in a row

OWC

OWC 128GB (8x16GB) DDR3L 1600 CL11 2Rx4 240-pin 1.35V ECC Registered RDIMM memory upgrade

SKU CH-B4HK-Z2EF9

Eight 16 GB DDR3L 1600 ECC registered DIMMs totalling 128 GB for Cisco UCS C200 M2 and C210 M2 servers

  • Capacity128GB (8 x 16GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 128GB (8 x 16GB)

  • ECC registered design protects data integrity in server workloads
  • 128 GB kit with eight 16 GB modules maximises Cisco UCS C200 M2 and C210 M2 capacity
  • DDR3L 1600 CL11 at 1.35 V lowers power draw versus standard DDR3
  • 2Rx4 registered DIMMs ensure stable operation under heavy multi-threaded loads
  • Direct replacement for Cisco part numbers UCSMR1X162RYA, UCSMR1X162RYARF and UCSMR2X162RYE

Server memory kit

This OWC kit supplies 128GB of DDR3L ECC registered memory across eight 16GB modules. It is built for Cisco UCS C200 M2 and C210 M2 servers that require 240-pin RDIMMs. Workstations or desktops using unbuffered or load-reduced DIMMs cannot use this memory.

Thermals and power

Each module runs at 1.35V, the standard DDR3L voltage, which reduces power draw compared with 1.5V DDR3. The modules have no heat spreaders, so airflow through the server chassis handles cooling. Registered buffering adds a clock cycle but stabilises the memory bus under heavy loads.

Compatibility and replacement

The kit replaces Cisco part numbers UCSMR1X162RYA, UCSMR1X162RYARF and UCSMR2X162RYE. It is validated for the listed Cisco UCS models only and will not work in systems requiring unbuffered or LRDIMM modules. OWC provides a limited lifetime warranty with free technical support.

Highlights

  • ECC registered design protects data integrity in server workloads
  • 128 GB kit with eight 16 GB modules maximises Cisco UCS C200 M2 and C210 M2 capacity
  • DDR3L 1600 CL11 at 1.35 V lowers power draw versus standard DDR3
  • 2Rx4 registered DIMMs ensure stable operation under heavy multi-threaded loads
  • Direct replacement for Cisco part numbers UCSMR1X162RYA, UCSMR1X162RYARF and UCSMR2X162RYE

Specifications

BrandOWC
Part Number1R6T32R4128K
Capacity128GB (8 x 16GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemCisco UCS C200 M2
Cisco UCS C210 M2

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Questions about this item

How do I install the 240-pin DDR3L ECC Registered RDIMM modules in a Cisco UCS C200 M2 or C210 M2, and what step is often missed?

Power down the server, open the chassis, and seat each 16GB module in the correct DIMM slots per the Cisco memory population guide; the step often missed is enabling the ECC Registered memory in BIOS after installation so the system recognises the 128GB kit.

What maintenance or replacement will the 8x16GB DDR3L 1600 CL11 kit need later?

The modules have no heat spreaders and are solid-state, so no routine maintenance is required; replacement is only needed if a DIMM fails, which is covered by OWC's limited lifetime warranty and advanced replacement programme.

What limit appears first when the 128GB DDR3L 1.35V ECC Registered kit runs under sustained load?

The primary limit is the DDR3L 1600 (PC3L-12800) bandwidth and CL11 latency ceiling; the registered buffer adds a small command-cycle overhead, so sustained throughput tops out at the rated 1600 MT/s before any thermal throttling occurs.

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