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Four black 288-pin DDR5 UDIMM modules without heat spreaders

OWC

OWC 128GB (4x32GB) DDR5 4800 CL40 1.1V Non-ECC UDIMM desktop RAM

SKU CH-8EN0-0ZTFB

A 128 GB desktop memory kit of four 32 GB DDR5 modules running at 4800 MT/s with CL40 latency at 1.1 V

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 128GB (4 x 32GB)

  • 128GB total capacity from four 32GB modules
  • DDR5 4800 speed with CL40 latency
  • Low 1.1V operation reduces power draw
  • JEDEC-standard compliance ensures broad compatibility
  • Unbuffered non-ECC design fits standard desktop slots

128GB DDR5 4800 desktop kit

This kit contains four 32GB DDR5 UDIMMs rated at 4800 MT/s with CL40 latency and 1.1V operation. It is built for desktop, workstation, NAS and all-in-one systems that accept unbuffered non-ECC memory. The modules follow JEDEC PC5-38400 specifications for broad platform compatibility.

288-pin unbuffered installation

Each module uses the standard 288-pin DDR5 UDIMM form factor and requires no heat spreader. Installation is a straightforward DIY task in most cases; the main risk is seating a module incompletely or mixing it with existing kits of different speed or voltage. Align the notch, press firmly until the retention clips click, and verify the full 128GB appears in firmware.

CL40 timing at 1.1V

The decisive specification is the CL40 CAS latency at the JEDEC 1.1V baseline. Systems that require lower latency or higher voltage kits will not match this profile. Confirm the platform supports DDR5 4800 CL40 2Rx8 unbuffered DIMMs before purchase.

Ciri-ciri utama

  • 128GB total capacity from four 32GB modules
  • DDR5 4800 speed with CL40 latency
  • Low 1.1V operation reduces power draw
  • JEDEC-standard compliance ensures broad compatibility
  • Unbuffered non-ECC design fits standard desktop slots

Spesifikasi

BrandOWC
Part Number4U8D52R8128S
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseDesktops
LED ColorNone

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How do I confirm the kit is running at 4800 MT/s and CL40 after installation?

Open the BIOS or a tool such as CPU-Z and verify the memory tab shows 4800 MT/s with timings of 40-40-40 at 1.1 V.

What exactly ships in the box and is anything else required?

The box contains four black 288-pin UDIMM modules, each 32 GB, for a total of 128 GB; no cables, brackets or extra software are included.

Why choose the 128 GB (4×32 GB) CL40 1.1 V version over other capacities?

This kit delivers the maximum 128 GB capacity in four matched modules at the standard JEDEC 4800 MT/s speed and low 1.1 V voltage for broad desktop compatibility.

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