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OWC

OWC 64GB (4x16GB) DDR3L 1600 PC3L-12800 CL11 2Rx4 240-pin 1.35V ECC Registered RDIMM for Dell PowerVault NX400

SKU CH-S6QZ-DG1SS

64GB kit of four 16GB DDR3L 1600 ECC registered DIMMs for Dell PowerVault NX400 servers

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (4 x 16GB)

  • ECC registered design protects data integrity in servers
  • 64GB total capacity from four 16GB modules
  • DDR3L 1600 speed matches Dell PowerVault NX400 specs
  • Low 1.35V voltage reduces power draw
  • Replaces Dell part numbers A6761613, A6994465, A7515505, A8255125, SNP20D6FC/16G

Server Memory Upgrade

This OWC kit delivers 64 GB of DDR3L ECC registered memory in four 16 GB modules for the Dell PowerVault NX400. It runs at 1600 MHz with CL11 latency and 1.35 V operation. The 2Rx4 organisation and 240-pin RDIMM form factor match the server's requirements. Standard desktop systems cannot use these registered modules.

Sustained Workload Behaviour

ECC registered architecture corrects single-bit errors and reduces electrical load on the memory controller during continuous operation. The 1.35 V DDR3L voltage lowers power draw compared to standard DDR3 while maintaining 1600 MHz throughput. CL11 timing provides consistent latency for database and virtualisation tasks that run for hours without reboot.

Pre-Installation Checks

Verify the PowerVault NX400 currently uses DDR3L registered ECC DIMMs and has four free 240-pin slots. Confirm the system BIOS supports 16 GB density modules in a 2Rx4 configuration. Do not mix these registered sticks with any unbuffered memory already installed. The kit replaces Dell part numbers A6761613, A6994465, A7515505, A8255125 and SNP20D6FC/16G.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $176.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $2.77 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number1R6T32R4064S
Total capacity64 GB (4 × 16 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsDell PowerVault NX400

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Questions about this item

How much power does the 1.35V DDR3L kit draw when the PowerVault NX400 runs continuously?

Each module operates at 1.35 volts, lower than standard DDR3, reducing heat output during 24/7 server workloads.

What must the Dell PowerVault NX400 already have to accept this 240-pin registered ECC memory?

The NX400 must support DDR3L 1600 registered ECC RDIMMs; this kit will not work in systems that require unbuffered or non-ECC modules.

Can the 2Rx4 CL11 sticks run alongside any existing Dell A6761613 or SNP20D6FC/16G modules already in the NX400?

Yes, they replace Dell part numbers A6761613, A6994465, A7515505, A8255125 and SNP20D6FC/16G, so they match the same registered ECC specification.

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