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Two green DDR4 RDIMM modules with black chips and gold contacts

OWC

OWC 64GB (2x32GB) DDR4 3200 CL22 ECC Registered RDIMM 288-pin 1.2V 2Rx4 memory upgrade

SKU CH-GBV5-KQWQY

ECC registered DDR4 kit adds 64 GB across two 32 GB modules at 3200 MT/s CL22 for Cisco UCS B200 M6, C125 M5, C220 M6, C240 M6 and C245 M6 servers

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB (2 x 32GB)

Show 3 more
  • ECC registered design prevents data corruption in servers
  • 64GB kit with two 32GB modules expands capacity
  • DDR4 3200 speed matches Cisco UCS specifications
  • 2V operation reduces power draw in dense chassis
  • Validated for B200 M6 C125 M5 C220 M6 C240 M6 C245 M6

OWC 64GB DDR4 ECC RDIMM Kit

This OWC kit delivers 64GB of DDR4 3200 memory as two 32GB registered ECC RDIMMs. Each module runs at 1.2V with CL22 latency and a 2Rx4 organisation. The 288-pin form factor is built for Cisco UCS B200 M6, C125 M5, C220 M6, C240 M6 and C245 M6 servers.

Suits Cisco UCS server upgrades only

These modules are designed for the listed Cisco UCS platforms that require registered ECC DDR4 RDIMMs. They will not work in standard desktop motherboards or in systems that accept only unbuffered or load-reduced DIMMs. Buyers needing memory for consumer PCs or for platforms that do not support registered ECC should look elsewhere.

Verify registered ECC RDIMM support

Before ordering, confirm that your Cisco UCS model appears in the compatible list and that the system BIOS is configured for registered ECC memory. Ensure all installed DIMMs share the same capacity, speed and rank to avoid configuration errors. Check that the server has enough free 288-pin slots for both modules.

How it compares

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

Price $448.99
Typical for this category: the median of 21,161 items is $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 $7.02 per GB
Cheaper than about 57% 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 number3R2D42R4064P
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco UCS B200 M6
Cisco UCS C125 M5
Cisco UCS C220 M6
Cisco UCS C240 M6
Cisco UCS C245 M6

Other versions of this model

5 more in the same range

Questions about this item

Which Cisco UCS servers support this 288-pin DDR4 3200 ECC Registered RDIMM kit?

The kit is validated for Cisco UCS B200 M6, C125 M5, C220 M6, C240 M6 and C245 M6 servers.

Can I add these 2Rx4 Registered DIMMs to a system that already has unbuffered or Load-Reduced memory?

No. Registered memory cannot be mixed with unbuffered or Load-Reduced modules; all installed DIMMs must be Registered ECC.

How do I verify the 64GB kit is running at 3200 MT/s with CL22 after installation?

Check the BIOS memory information or OS tools such as dmidecode to confirm speed DDR4 3200 and CAS latency 22.

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