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Two green 240-pin DDR3L ECC registered DIMMs in anti-static bag

OWC

OWC 64GB (2x32GB) DDR3L 1066 PC3L-8500 CL7 4Rx4 240-pin 1.35V ECC Registered DIMM server RAM

SKU CH-35AV-AQDGB

A 64GB dual-channel DDR3L 1066 ECC registered server memory kit with two 32GB modules at 1.35V CL7

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR3L 1066 (PC3L 8500)
  • CAS latencyCL7
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 64GB (2 x 32GB)

Rank 4Rx4

  • 64 GB dual-channel kit expands server memory capacity
  • DDR3L 1066 CL7 timing delivers responsive data access
  • 35 V low-voltage operation reduces power draw per module
  • ECC registered design protects data integrity in critical workloads
  • 240-pin RDIMM form factor fits compatible workstation and server slots

Server memory kit

This OWC kit supplies 64GB of DDR3L ECC registered memory in two 32GB modules. It is built for workstations, servers, NAS systems and routers that require registered DIMMs with error correction. The modules run at 1066MHz with a CAS latency of CL7 and operate at 1.35V. They conform to JEDEC PC3L-8500 specifications and are RoHS compliant.

Compatibility check

Verify that your system accepts 240-pin DDR3L registered DIMMs and supports 4Rx4 modules before ordering. This memory will not work in standard desktop computers that use unbuffered DIMMs and cannot be mixed with unbuffered memory. Confirm the maximum supported capacity per slot and the qualified voltage for your platform. The kit is a dual-channel pair, so populate the correct slots for multi-channel operation.

Who this suits

Ideal for administrators extending the life of older DDR3L server infrastructure or building cost-effective replacement nodes that need registered ECC memory. Not suitable for builders who need unbuffered desktop memory, systems limited to lower-density ranks, or platforms that require a different DDR generation or form factor. Buyers who want higher speeds or larger single-module capacities should look elsewhere.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $154.99
Cheaper than about 55% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $2.42 per GB
Cheaper than about 92% of the 6,064 comparable items (median $7.25 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 number8R5T34R4064P
Total capacity64 GB (2 × 32 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1066 (PC3L 8500)
Memory
CAS latencyCL7
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.35 V

Other versions of this model

5 more in the same range

Questions about this item

What comes in the 64GB kit and do I need anything else to install it?

The kit contains two 32GB DDR3L 1066 PC3L-8500 CL7 4Rx4 240-pin 1.35V ECC Registered DIMM modules. No extra parts are required; install them directly into compatible 240-pin server or workstation slots.

Should I choose this 64GB dual-channel kit or a different capacity for my server?

This 64GB (2 x 32GB) dual-channel kit suits systems that support 4Rx4 registered ECC DDR3L at 1.35V. Select it when your platform needs 64GB in a matched pair; choose a different kit only if your board requires another capacity or rank configuration.

What does the PC3L-8500 1066MHz CL7 rating mean once the memory is running in my machine?

The modules operate at 1066 MT/s with CAS latency 7 at 1.35V, delivering the JEDEC-standard PC3L-8500 bandwidth for registered ECC DDR3L workloads in compatible workstations, servers or NAS systems.

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