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Four black DDR4 UDIMM modules with exposed green PCBs and gold contacts

OWC

OWC 64GB (4x16GB) DDR4-2133 CL15 1.2V 288-pin UDIMM desktop RAM

SKU CH-BZ9M-BS6M4

Four 16 GB DDR4-2133 CL15 modules provide 64 GB of unbuffered desktop memory at 1.2 V

  • Capacity64GB (4 x 16GB)
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.2V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 64GB (4 x 16GB)

  • 64 GB total capacity from four 16 GB modules
  • DDR4 2133 MHz speed rated at PC4-17000 for responsive multitasking
  • CL15 CAS latency at 1.2 V for efficient desktop operation
  • Unbuffered non-ECC 288-pin UDIMM fits standard desktop slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

64GB quad-channel kit for desktops

This kit supplies 64GB of DDR4 memory across four 16GB unbuffered UDIMMs. It targets desktop PCs, workstations and NAS systems that use standard 288-pin slots. The modules run at the JEDEC DDR4-2133 baseline with a CL15 latency and 1.2V operation.

Sustained load behaviour

Rated at DDR4-2133 PC4-17000 CL15, the modules maintain their specified timings during extended workloads rather than only in short bursts. Unbuffered non-ECC organisation means the memory controller handles every command directly, giving predictable latency for long rendering, compilation or virtualisation sessions.

DDR4-2133 interface limits

The PC4-17000 standard caps data rate at 2133 MT/s and voltage at 1.2V, so bandwidth cannot exceed the JEDEC baseline without manual overclocking. Four ranks per DIMM (2Rx8) increase electrical loading on the memory controller, which may restrict maximum populated speed on some platforms.

Pluspunten

  • 64 GB total capacity from four 16 GB modules
  • DDR4 2133 MHz speed rated at PC4-17000 for responsive multitasking
  • CL15 CAS latency at 1.2 V for efficient desktop operation
  • Unbuffered non-ECC 288-pin UDIMM fits standard desktop slots
  • JEDEC and RoHS compliant for warranty-safe upgrades

Specificaties

BrandOWC
Part Number2U1D42R8064S
Capacity64GB (4 x 16GB)
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseDesktops
LED ColorNone

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Vragen over dit artikel

Does the 1.2 V rating keep the 64 GB kit cool and quiet during all-day workloads?

Standard DDR4 1.2 V operation means no extra voltage headroom is needed, so the unbuffered modules run at stock power without generating excess heat or fan noise in a typical desktop case.

My motherboard has four 288-pin slots — is that all I need to install this 4 x 16 GB kit?

Yes, four free DDR4 288-pin UDIMM slots and a BIOS that supports 64 GB of non-ECC memory are the only requirements; no special cooling or power cables are involved.

Will the CL15 2133 MHz modules run stably alongside my existing DDR4 2133 MHz DIMMs?

Matching speed and latency lets the memory controller keep a single timing set, so the kit will operate reliably with other DDR4 2133 MHz CL15 sticks already in the system.

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