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Four green DDR3L LRDIMM modules with gold contacts and black chips

OWC

OWC 128GB (4x32GB) DDR3L 1600 CL11 ECC LRDIMM 240-pin 1.35V Cisco UCS C24 M3 C240 M3 C420 M3

SKU CH-N9WT-HCA3J

A 128GB DDR3L 1600 ECC load-reduced kit of four 32GB modules for Cisco UCS C24 M3, C240 M3 and C420 M3 servers

  • Capacity128GB (4 x 32GB)
  • Type240-Pin DDR3L ECC LRDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity in a matched 4 × 32 GB kit
  • Load-reduced ECC design keeps servers stable under heavy multi-tasking
  • DDR3L 1600 CL11 at 1.35 V reduces power draw
  • JEDEC and RoHS compliant for reliable operation
  • Validated for Cisco UCS C24 M3 C240 M3 C420 M3

Server-Specific ECC LRDIMM Kit

This 128GB kit contains four 32GB DDR3L 1600 CL11 modules built for Cisco UCS C24 M3, C240 M3 and C420 M3 servers. It uses 240-pin ECC load-reduced DIMMs operating at 1.35V and is not compatible with standard desktop computers.

128GB Capacity and Rank Limits

Four 4Rx4 modules fill four DIMM slots and deliver 128GB of registered ECC memory for virtualization or database workloads. The load-reduced design reduces electrical load on the memory controller, but the kit cannot be mixed with unbuffered or standard registered DIMMs.

DDR3L 1600 Interface Constraints

The PC3L-12800 interface tops out at 1600 MT/s and 1.35V, so bandwidth is fixed by the DDR3L generation used in these Cisco platforms. Systems requiring higher speeds, different voltages or newer memory generations cannot use this kit.

Highlights

  • 128 GB total capacity in a matched 4 × 32 GB kit
  • Load-reduced ECC design keeps servers stable under heavy multi-tasking
  • DDR3L 1600 CL11 at 1.35 V reduces power draw
  • JEDEC and RoHS compliant for reliable operation
  • Validated for Cisco UCS C24 M3 C240 M3 C420 M3

Specifications

BrandOWC
Part Number1L6T34R4128S
Capacity128GB (4 x 32GB)
Type240-Pin DDR3L ECC LRDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS C24 M3
Cisco UCS C240 M3
Cisco UCS C420 M3

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Questions about this item

Will these 240-pin DDR3L 1600 LRDIMMs run alongside any existing 1.35V registered ECC modules I keep in the Cisco UCS C240 M3?

No. The manufacturer highlights state that Load Reduced memory cannot be mixed with unbuffered or ECC registered memory, so all slots must use the same LRDIMM type.

How can I verify the kit is recognised at the rated 1600 MT/s and CL11 timings after installation?

Enter the server BIOS or use a tool such as dmidecode to confirm each 32 GB module reports DDR3L 1600 (PC3L 12800) speed and CAS latency 11.

Does the 128 GB kit include only the four 32 GB LRDIMMs or are any cables, brackets or licences supplied?

The upgrade kit consists of four 32 GB DDR3L 1600 CL11 4Rx4 240-pin 1.35 V ECC Load Reduced DIMMs; no additional cables, brackets or licences are included.

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