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Four black DDR4 UDIMM sticks without heat spreaders

OWC

OWC 32GB (4x8GB) DDR4 3200MHz CL22 Desktop RAM

SKU CH-K5SW-WZCT2

A 32GB kit of four 8GB DDR4 3200MHz CL22 unbuffered UDIMMs at 1.2V for desktop PCs, workstations and NAS systems

  • Capacity32GB (4 x 8GB)
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCNo
  • Buffered/RegisteredUnbuffered

Capacity 32GB (4 x 8GB)

  • Boosts multitasking with 32GB total capacity
  • Runs at 3200MHz CL22 for responsive performance
  • Operates at 1.2V for efficient power use
  • JEDEC compliant for broad desktop compatibility
  • Backward compatible with 2133, 2400, 2666, 2933MHz systems

32GB DDR4 Kit for Desktop Upgrades

This OWC kit delivers 32GB of DDR4 memory across four 8GB unbuffered UDIMMs. It targets desktop PCs, workstations and NAS systems that need a straightforward capacity increase. The modules run at the standard 1.2V and require no extra configuration beyond installation.

Capacity and Headroom at 3200MHz CL22

The 32GB total suits heavy multitasking, large file handling and concurrent application workloads. Each module operates at 3200MHz with a CL22 latency, providing bandwidth rated at PC4-25600. Performance scales with the memory controller; the kit will not exceed the platform's maximum supported data rate.

DDR4 Interface Limits and Backward Compatibility

The 288-pin DDR4 interface caps native transfer rates at the JEDEC-defined 3200MT/s for this specification. The modules automatically down-clock to 2933MHz, 2666MHz, 2400MHz or 2133MHz when installed in systems that only support those lower speeds. Non-ECC unbuffered operation is the only mode supported.

Highlights

  • Boosts multitasking with 32GB total capacity
  • Runs at 3200MHz CL22 for responsive performance
  • Operates at 1.2V for efficient power use
  • JEDEC compliant for broad desktop compatibility
  • Backward compatible with 2133, 2400, 2666, 2933MHz systems

Specifications

BrandOWC
Part Number3U2D41R8032S
Capacity32GB (4 x 8GB)
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseDesktops
LED ColorNone

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Questions about this item

Will the 3200MHz CL22 modules run stably alongside my existing 2666MHz DDR4 sticks?

The kit is backward compatible with 2666MHz, 2400MHz, 2133MHz and 2933MHz DDR4. When mixed, all modules operate at the speed of the slowest installed stick.

How can I verify the 32GB kit is running at the rated 3200MHz CL22 after installation?

Check the memory speed and CAS latency in your BIOS or UEFI, or use a system information tool such as CPU-Z to confirm DDR4-3200 CL22 operation.

Does the 4x8GB package include only the four UDIMM modules, or are any cables or tools supplied?

The box contains the four 288-pin unbuffered non-ECC UDIMM modules only. No cables, screws or installation tools are included.

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