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Four black DDR5 UDIMM modules without heat spreaders

OWC

OWC 64GB (4x16GB) DDR5 4800 CL40 ECC Unbuffered UDIMM Kit

SKU CH-MYM0-G967G

Four 16 GB DDR5 4800 CL40 ECC unbuffered UDIMMs provide 64 GB of error-correcting memory for workstations and servers

  • Capacity64GB (4 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 64GB (4 x 16GB)

  • 64GB total capacity from four 16GB modules
  • DDR5 4800 speed with CL40 latency
  • ECC unbuffered design protects data integrity
  • Low 1.1V voltage reduces power draw
  • JEDEC compliant for broad workstation compatibility

OWC 64GB DDR5 4800 ECC UDIMM Kit

This kit provides 64GB of DDR5 memory in four 16GB unbuffered UDIMMs rated at 4800 MT/s with CL40 latency. It is built for workstations, servers and NAS systems that require error-correcting code protection. The modules operate at the standard 1.1V JEDEC voltage and use the 288-pin form factor. No heat spreaders or lighting are included.

JEDEC and RoHS compliant modules

Every module meets JEDEC DDR5 specifications and RoHS requirements, making the upgrade warranty-safe for supported OEM platforms. The kit is validated for dual-channel operation across the four DIMMs. OWC tests each unit in-house and backs it with a limited lifetime warranty and free technical support. Installation follows the standard UDIMM procedure for compatible desktop, workstation, all-in-one and server chassis.

ECC unbuffered DDR5 at 1.1V

The defining specification is ECC unbuffered DDR5 running at the base 4800 MT/s JEDEC speed with 1.1V operation. This combination determines whether the memory will function in a given workstation, server or NAS motherboard that expects unbuffered ECC UDIMMs. Verify the platform's qualified-vendor list for 1Rx8 288-pin modules before purchase.

Ciri-ciri utama

  • 64GB total capacity from four 16GB modules
  • DDR5 4800 speed with CL40 latency
  • ECC unbuffered design protects data integrity
  • Low 1.1V voltage reduces power draw
  • JEDEC compliant for broad workstation compatibility

Spesifikasi

BrandOWC
Part Number4E8D51R8064S
Capacity64GB (4 x 16GB)
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

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Will this kit fit a motherboard with four 288-pin DDR5 slots?

Yes, the kit contains four 16 GB modules built to the 288-pin DDR5 UDIMM standard, so each stick occupies one slot.

Does the ECC feature work on a standard desktop CPU?

ECC functions only when the processor and motherboard both support ECC unbuffered memory; check your platform documentation before buying.

Is any extra cooling required for these modules?

The modules run at 1.1 V and have no heat spreader, so standard case airflow is normally sufficient.

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