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Four green DDR3L 240-pin RDIMM modules with gold contacts and black chips

OWC

OWC 128GB (4x32GB) DDR3L 1600 CL11 4Rx4 240-pin 1.35V ECC Registered RDIMM server RAM

SKU CH-7F51-5BVAY

128 GB DDR3L 1600 ECC registered server memory kit in four 32 GB modules at 1.35 V

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

Capacity 128GB (4 x 32GB)

Rank 4Rx4

  • ECC registered design protects data integrity in servers
  • 128 GB quad-channel kit expands memory capacity for heavy workloads
  • DDR3L 1600 CL11 speed delivers responsive performance at 1.35 V
  • 240-pin RDIMM form factor fits select workstations and NAS systems
  • JEDEC and RoHS compliant build ensures warranty-safe upgrades

Server ECC RDIMM kit

This 128 GB kit contains four 32 GB DDR3L 1600 CL11 registered DIMMs built for workstations, servers and NAS systems. The modules run at 1.35 V and carry ECC protection for data integrity in 24/7 environments. They are not compatible with standard desktop motherboards.

Registered 4Rx4 organisation

The decisive specification is the 4Rx4 registered ECC layout combined with DDR3L 1.35 V signalling; only platforms that explicitly support registered DDR3L RDIMMs can use this kit. Mixing these modules with unbuffered memory will prevent the system from booting.

Simple DIMM installation

Installation is a matter of seating each 240-pin module into the correct channel slots until the latches click. The most common error is installing registered DIMMs in a consumer board that only accepts unbuffered memory, which results in no POST.

Highlights

  • ECC registered design protects data integrity in servers
  • 128 GB quad-channel kit expands memory capacity for heavy workloads
  • DDR3L 1600 CL11 speed delivers responsive performance at 1.35 V
  • 240-pin RDIMM form factor fits select workstations and NAS systems
  • JEDEC and RoHS compliant build ensures warranty-safe upgrades

Specifications

BrandOWC
Part Number1R6T34R4128S
Capacity128GB (4 x 32GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Questions about this item

What does the 1600 speed rating mean for real-world throughput in a server?

The DDR3L 1600 (PC3L-12800) modules transfer data at the JEDEC-standard 1600 MT/s rate when the platform memory controller is configured for that speed.

How does the DDR3L 1600 (PC3L-12800) interface limit performance in practice?

The PC3L-12800 designation caps the peak transfer rate at the JEDEC 1600 MT/s specification; actual throughput depends on the memory controller and channel population.

What physical space and slot type do these 32 GB modules need to fit?

Each module is a 240-pin DDR3L RDIMM measuring to the standard DIMM height; the kit requires four adjacent 240-pin DDR3 registered DIMM slots.

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