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Two green DDR3L RDIMM modules with gold contacts and black chips

OWC

OWC 32GB (2x16GB) DDR3L 1600 PC3L-12800 CL11 2Rx4 240-pin 1.35V ECC Registered RDIMM memory upgrade

SKU CH-41GK-3VW1T

32 GB kit of two 16 GB DDR3L 1600 ECC registered RDIMMs for Cisco UCS B260 M4 and B460 M4 servers

  • Capacity32GB (2 x 16GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • ECC registered design protects data integrity in critical workloads
  • 32 GB kit (2 × 16 GB) expands server memory capacity
  • DDR3L 1600 CL11 at 1.35 V balances speed and efficiency
  • 240-pin RDIMM fits Cisco UCS B260 M4 and B460 M4 E7 v2/v3
  • 2Rx4 registered modules replace Cisco UCSMR1X162RYA, UCSMR1X162RYARF, UCSMR2X162RYE

Server ECC RDIMM Kit

This 32GB kit contains two 16GB DDR3L registered DIMMs built for Cisco UCS B260 M4 and B460 M4 blade servers. It delivers ECC protection and registered signalling for workloads that demand data integrity in enterprise environments.

240-Pin DDR3L Form Factor

Each module uses the 240-pin DDR3L interface at 1.35V with CL11 latency and a 2Rx4 organisation. The registered design adds a buffer between the memory controller and DRAM, so these sticks cannot be mixed with unbuffered or load-reduced modules in the same system.

DDR3L 1600 Platform Limit

The PC3L-12800 standard caps transfer rates at 1600 MT/s, which matches the maximum supported speed of the target Cisco UCS platforms. Builders needing higher bandwidth or newer memory generations must select a different server platform, as this kit is bound to the DDR3L interface.

Highlights

  • ECC registered design protects data integrity in critical workloads
  • 32 GB kit (2 × 16 GB) expands server memory capacity
  • DDR3L 1600 CL11 at 1.35 V balances speed and efficiency
  • 240-pin RDIMM fits Cisco UCS B260 M4 and B460 M4 E7 v2/v3
  • 2Rx4 registered modules replace Cisco UCSMR1X162RYA, UCSMR1X162RYARF, UCSMR2X162RYE

Specifications

BrandOWC
Part Number1R6T32R4032P
Capacity32GB (2 x 16GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B260 M4 E7 v2 & v3
Cisco UCS B460 M4 E7 v2 & v3

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Questions about this item

What does the DDR3L 1600 PC3L-12800 interface cap the memory speed at in practice?

The modules run at 1600 MHz with a PC3L-12800 bandwidth rating and CL11 latency.

What physical slot and form factor does this 240-pin RDIMM kit require?

Each 16 GB stick uses a 240-pin DIMM slot and has no heat spreader, so it fits standard registered DIMM sockets.

How are these ECC registered modules installed, and what step do people often get wrong?

Install in matched pairs per the Cisco UCS B260 M4 or B460 M4 memory guide; the common error is mixing them with unbuffered or load-reduced DIMMs, which the system will not support.

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