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Eight green DDR3L registered DIMMs in anti-static tray

OWC

OWC 64GB (8x8GB) DDR3L 1333 ECC Registered RDIMM Memory Upgrade Kit

SKU CH-88QP-094YD

64 GB kit of eight 8 GB DDR3L 1333 ECC registered RDIMMs for Cisco UCS B440 M2 servers

  • Total capacity64 GB (8 × 8 GB)
  • Rated speedDDR3L 1333 (PC3L 10600)
  • CAS latencyCL9
  • Rated voltage1.35 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (8 x 8GB)

  • ECC registered design protects data integrity in servers
  • 64GB kit with eight 8GB modules expands capacity
  • DDR3L 1333 CL9 at 1.35V reduces power draw
  • 240-pin RDIMM fits Cisco UCS B440 M2 slots
  • Replaces Cisco part numbers N01M308GB2 and UCSMR series

Server-grade DDR3L ECC kit

This OWC upgrade kit supplies 64 GB of registered DDR3L memory in eight 8 GB modules. It is built for the Cisco UCS B440 M2 blade server and other workstation or server platforms that require 240-pin ECC registered DIMMs. Standard desktop computers cannot use this memory type.

Registered ECC with low voltage

Each module runs at 1.35 V and meets PC3L-10600 timing at CL9 latency. The registered buffer and ECC circuitry provide the data-integrity and signal-stability that multi-socket server boards demand. Mixing these DIMMs with unbuffered or load-reduced memory is not supported.

64 GB capacity for virtualization workloads

Eight slots filled with 8 GB DIMMs give the B440 M2 its maximum supported memory in this configuration, allowing dense virtual-machine hosting and large in-memory databases. Systems limited to fewer DIMM slots or lower per-slot limits will not accept the full kit.

How it compares

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

Price $183.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (8 × 8 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $2.87 per GB
Cheaper than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1R3T32R4064K
Total capacity64 GB (8 × 8 GB)
Product type240-Pin DDR3L ECC RDIMM
Performance
Rated speedDDR3L 1333 (PC3L 10600)
Memory
CAS latencyCL9
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsCisco UCS B440 M2

Other versions of this model

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Questions about this item

Will the registered DIMM design or ECC circuitry on these DDR3L modules require any periodic maintenance or replacement?

No, the ECC registered DDR3L modules are solid-state components with no moving parts or serviceable items; they are installed once and remain in place for the life of the server.

What is the first limit reached when the eight 8 GB DDR3L 1333 CL9 modules run at full load continuously?

The memory controller on the Cisco UCS B440 M2 caps usable speed at DDR3L 1333, so bandwidth saturates before voltage or thermal limits become a factor.

How much heat and power do the 1.35 V DDR3L 1333 RDIMMs add when the chassis runs all day?

Each module draws 1.35 V at standard DDR3L current, producing modest heat that the B440 M2's existing airflow handles without extra cooling.

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