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Four black DDR4 UDIMM modules without heat spreaders

OWC

OWC 128GB (4x32GB) DDR4 2933MHz CL21 ECC Unbuffered UDIMM desktop RAM

SKU CH-NTW9-T27C5

Four 32 GB DDR4 2933 MHz ECC unbuffered UDIMMs totalling 128 GB for workstations, servers and NAS systems

  • Capacity128GB (4 x 32GB)
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 128GB (4 x 32GB)

  • 128 GB total capacity from four 32 GB modules
  • ECC protection detects and corrects single-bit data errors
  • JEDEC-standard 2933 MHz DDR4 speed with CL21 latency
  • Low 1.2 V operation reduces power draw and heat
  • Compatible with 2133, 2400 and 2666 MHz systems for easy upgrades

128GB ECC Kit for Workstations and NAS

This kit provides 128GB of DDR4 memory across four 32GB unbuffered UDIMMs. It is built for workstations, servers and NAS systems that require error-correcting code protection. Each module runs at 1.2V and conforms to JEDEC standard specifications.

Sustained 2933MHz Operation

The modules operate at DDR4 2933MHz with a CL21 latency under continuous load. They also run stably at 2133MHz, 2400MHz and 2666MHz when the platform dictates a lower speed. ECC functionality remains active across all supported frequencies.

288-Pin Unbuffered Design Without Heat Spreaders

Black 288-pin UDIMMs fit standard desktop DIMM slots without added height from heat spreaders. The unbuffered layout suits platforms that do not accept registered memory. A dual-channel kit configuration populates four slots for maximum capacity.

Ciri-ciri utama

  • 128 GB total capacity from four 32 GB modules
  • ECC protection detects and corrects single-bit data errors
  • JEDEC-standard 2933 MHz DDR4 speed with CL21 latency
  • Low 1.2 V operation reduces power draw and heat
  • Compatible with 2133, 2400 and 2666 MHz systems for easy upgrades

Spesifikasi

BrandOWC
Part Number2E9D42R8128S
Capacity128GB (4 x 32GB)
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

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Will these 288-pin ECC unbuffered modules fit a standard desktop motherboard?

They fit 288-pin DDR4 slots, but the board must support ECC unbuffered memory; many consumer desktops do not.

Can the kit run at 2933 MHz if my CPU only supports 2666 MHz?

The modules are backward compatible with 2666, 2400 and 2133 MHz and will down-clock automatically.

Do I need to populate all four slots to get 128 GB?

Yes, the kit contains four 32 GB sticks; all four must be installed to reach the full capacity.

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