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Eight green 240-pin DDR3L ECC registered DIMMs in a row

OWC

OWC 64GB (8x8GB) DDR3L 1333 PC3L-10600 CL9 ECC RDIMM memory upgrade

SKU CH-WH0X-1CZ91

64GB kit of eight 8GB DDR3L 1333 ECC registered RDIMMs at 1.35V for Cisco UCS B230 M1 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 prevents data errors in servers
  • 64GB kit with eight 8GB modules maximises capacity
  • DDR3L 1333 CL9 at 1.35V cuts power draw
  • 240-pin RDIMM fits Cisco UCS B230 M1 slots
  • Replaces Cisco part numbers N01M308GB2 and UCSMR series

Server-grade ECC RDIMM kit

This OWC kit supplies 64 GB of DDR3L registered ECC memory across eight 8 GB modules. It is built for the Cisco UCS B230 M1 blade server and other workstations or NAS systems that require 240-pin DDR3L RDIMMs. The modules will not work in standard desktop computers or alongside unbuffered or load-reduced DIMMs.

240-pin registered form factor

Each stick uses a 240-pin DDR3L interface at 1.35 V with a 2Rx4 organisation and no heat spreader. Registered buffering and ECC correction mean the memory presents a single electrical load per channel, allowing the platform to populate all slots reliably. The low-profile design fits the dense blade chassis without clearance issues.

DDR3L 1333 at CL9 latency

Operating at PC3L-10600 speed with CAS latency 9, the kit delivers the bandwidth and error detection the B230 M1 expects. The 1.35 V DDR3L voltage reduces power draw compared with standard DDR3 while maintaining stability under sustained server workloads. No active cooling is required on the modules themselves.

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 (8 × 8 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).

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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 B230 M1

Other versions of this model

5 more in the same range

Questions about this item

What speed does the DDR3L 1333 PC3L-10600 interface actually run at in the Cisco UCS B230 M1?

The modules are rated for DDR3L 1333 (PC3L-10600) and will operate at up to 1333 MT/s in the Cisco UCS B230 M1, subject to the platform's memory controller and population rules.

What physical slot and form factor do these 240-pin RDIMMs require?

Each module is a 240-pin DDR3L ECC Registered DIMM (RDIMM) measuring 1.35 V; it installs only in DDR3 240-pin RDIMM sockets keyed for registered memory.

What is the correct installation sequence for the eight 8 GB modules in the Cisco UCS B230 M1?

Populate the DIMM slots per the Cisco UCS B230 M1 service guide — typically filling one channel per CPU at a time, matching rank and capacity per channel — and never mix these registered DIMMs with unbuffered or load-reduced modules.

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