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Eight black DDR5 UDIMM modules in a row, no heat spreaders, standard 288-pin form factor

OWC

OWC 256GB (8×32GB) DDR5 5600 CL46 ECC UDIMM desktop RAM

SKU CH-Q0S1-ZMQ7G

Eight 32GB DDR5 5600 CL46 ECC unbuffered UDIMMs deliver 256GB at 1.1V for workstations, servers and NAS systems

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Kit configurationDual Channel Kit

Capacity 256GB (8 x 32GB)

  • 256 GB total capacity from eight 32 GB modules
  • DDR5 5600 speed with CL46 latency for responsive workloads
  • ECC unbuffered design protects data integrity in workstations and servers
  • 1 V operation reduces power draw under load
  • JEDEC and RoHS compliant for warranty-safe upgrades

Capacity and Layout

This kit delivers 256GB across eight 32GB DDR5 5600 UDIMMs. Each module runs at CL46 latency and 1.1V with on-die ECC and an unbuffered design. The 288-pin form factor fits standard desktop DIMM slots.

Suited For

Workstations, servers and NAS appliances that require ECC protection and high density will benefit from this configuration. Systems without ECC support in the memory controller should choose non-ECC modules instead.

Build Integration

Eight modules populate all available slots on many dual-channel platforms, so confirm the motherboard supports this population. The low 1.1V operating voltage reduces thermal load and leaves headroom for other components.

How it compares

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

Price $5,988.99
Pricier than about 91% of the 3,647 comparable items (median $90.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 99% of the 3,251 comparable items (median 16 GB).
Price per GB $23.39 per GB
Pricier than about 90% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameOWC
Part number5E6D52R8256K
Total capacity256 GB (8 × 32 GB)
Product colorBlack
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportYes
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forWorkstations, Servers, and NAS Systems
More details
LED lightingNone

Other versions of this model

5 more in the same range

Questions about this item

Will these modules fit in a standard consumer desktop motherboard?

The kit uses 288-pin DDR5 UDIMMs, which are the standard physical format for desktop DDR5. Your motherboard must support DDR5 and ECC unbuffered memory; many consumer boards do not enable ECC.

Does the 1.1 V voltage require any special BIOS setting?

1.1 V is the standard JEDEC voltage for DDR5, so the modules will run at that level automatically on any compatible board without manual adjustment.

Can I mix this 256 GB kit with my existing 32 GB sticks?

Mixing capacities is possible only if the motherboard supports the total population and all modules share the same speed, voltage and ECC type; otherwise the system will default to the slowest common settings or fail to boot.

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