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Two green 240-pin DDR3L LRDIMM modules with black chips

OWC

OWC 64GB (2x32GB) DDR3L 1600 CL11 ECC LRDIMM 240-pin 1.35V 4Rx4 memory upgrade

SKU CH-5C8Z-RE8ZR

A 64 GB DDR3L ECC LRDIMM kit (2 × 32 GB) running at 1600 MHz CL11 for Cisco UCS B260 M4 and B460 M4 servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 64GB (2 x 32GB)

  • ECC Load-Reduced design boosts server reliability
  • 64 GB kit (2 x 32 GB) expands memory capacity
  • DDR3L 1600 CL11 delivers 12800 MT/s bandwidth
  • 35 V low-voltage operation cuts power draw
  • Qualified for Cisco UCS B260 M4 and B460 M4

64GB DDR3L ECC LRDIMM kit

This 64GB kit contains two 32GB DDR3L 1600 CL11 ECC Load Reduced DIMMs built for specific Cisco UCS servers. Each module runs at 1.35V and uses a 240-pin 4Rx4 layout. The memory is designed to extend the service life of compatible blade platforms. OWC tests every module in its own lab before shipment.

Suits Cisco UCS B260 M4 and B460 M4 E7 v2/v3

This upgrade fits Cisco UCS B260 M4 E7 v2 and v3 plus B460 M4 E7 v2 and v3 blade servers. It will not work in standard desktop computers or consumer motherboards. It also cannot be mixed with unbuffered or registered ECC memory of a different type. Buyers needing memory for non-Cisco platforms should look elsewhere.

Load Reduced ECC DDR3L 1.35V

The decisive specification is the Load Reduced ECC DDR3L design at 1.35V with a 4Rx4 organisation. Only systems qualified for this exact module type will recognise and operate the kit correctly. Verifying the server memory qualification list before purchase is essential.

How it compares

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

Price $75.99
Cheaper than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $1.19 per GB
Cheaper than about 96% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1L6T34R4064P
Total capacity64 GB (2 × 32 GB)
Product type240-Pin DDR3L ECC LRDIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsCisco UCS B260 M4 E7 v2 & v3
Cisco UCS B460 M4 E7 v2 & v3

Other versions of this model

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Questions about this item

Which server models must I already own for this 64 GB kit to be compatible?

The kit is validated for Cisco UCS B260 M4 E7 v2 & v3 and Cisco UCS B460 M4 E7 v2 & v3 blade servers.

Can I mix these 4Rx4 Load-Reduced modules with the registered ECC DIMMs already in my B260 M4?

No — Load-Reduced memory cannot be mixed with registered or unbuffered ECC DIMMs; all slots must use identical LRDIMMs.

How do I confirm the 1600 MT/s speed and ECC function are active after installation?

Check the server BIOS or Cisco UCS Manager; both will report 1600 MT/s operation and show ECC enabled for each 32 GB module.

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