We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two black 288-pin DDR5 UDIMM modules, no heat spreaders, 64GB kit

OWC

OWC 64GB (2x32GB) DDR5 4800 CL40 1.1V UDIMM desktop RAM

SKU CH-CMWN-77BS4

A 64 GB dual-channel DDR5 kit running at 4800 MT/s with CL40 latency and 1.1 V operation for desktop upgrades

  • Capacity64GB (2 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 64GB (2 x 32GB)

  • Dual-channel 64 GB kit expands multitasking headroom
  • DDR5 4800 CL40 timing accelerates data throughput
  • 1 V operation reduces system power draw
  • JEDEC-standard build ensures warranty-safe compatibility
  • 288-pin UDIMM form factor fits standard desktop slots

64GB Dual-Channel DDR5 Kit

This OWC kit supplies 64GB of DDR5 memory across two 32GB unbuffered UDIMMs. It targets desktop, workstation and all-in-one systems that accept standard 288-pin modules. The 1.1V operating voltage matches the JEDEC baseline for DDR5.

Sustained Load Behaviour

JEDEC compliance means the modules run at their rated 4800MT/s and CL40 timings without relying on overclock profiles. Under continuous workloads the fixed voltage and non-ECC design deliver stable throughput for rendering, virtualization or large dataset tasks. No heat spreader is fitted, so case airflow handles thermal management.

Deciding Specification

The 4800MT/s JEDEC speed is the single figure that determines fit. If the platform’s memory controller tops out at 4800MT/s this kit runs natively; if the board only supports lower speeds the modules will down-clock. Verify the motherboard or system manual lists DDR5 4800 support before purchase.

Highlights

  • Dual-channel 64 GB kit expands multitasking headroom
  • DDR5 4800 CL40 timing accelerates data throughput
  • 1 V operation reduces system power draw
  • JEDEC-standard build ensures warranty-safe compatibility
  • 288-pin UDIMM form factor fits standard desktop slots

Specifications

BrandOWC
Part Number4U8D52R8064P
Capacity64GB (2 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

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How much heat or noise should I expect from the 1.1 V DDR5 4800 CL40 kit running all day?

The modules operate at 1.1 V with no heat spreader and no onboard fan, so they run silently and add minimal heat inside a desktop case.

What must my motherboard already provide for these 288-pin UDIMMs to work?

A DDR5-compatible desktop board with two free 288-pin unbuffered non-ECC DIMM slots and a BIOS that supports 4800 MT/s JEDEC speed.

Will the CL40 4800 modules run stably alongside older DDR5 sticks I keep installed?

Mixing kits is not guaranteed; the motherboard will default all modules to the slowest common speed and loosest timings, which may be lower than 4800 CL40.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.