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Two bare green DDR4 LRDIMM sticks, 288 pins each

OWC

OWC 256GB (2x128GB) DDR4 3200 CL22 4Rx4 1.2V ECC LRDIMM memory upgrade

SKU CH-3ZF0-HAXRC

256 GB DDR4-3200 ECC load-reduced DIMM kit for Supermicro H12 server boards

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 256GB (2 x 128GB)

Doorgestreepte varianten bestaan wel, maar zijn hier niet op voorraad.

  • 256 GB total capacity with two 128 GB modules
  • DDR4 3200 speed for high-throughput server workloads
  • ECC load-reduced design protects data integrity in critical systems
  • 2 V operation lowers power draw per module
  • Validated for Supermicro H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C, H12SSL-i motherboards

Server-grade ECC LRDIMM kit

This OWC kit supplies 256 GB of DDR4 3200 memory in two 128 GB load-reduced DIMMs. Each module runs at CL22 latency and 1.2 V, delivering error-correcting code protection for data integrity. The 288-pin form factor is built for Supermicro H12 series motherboards.

Suited for compatible Supermicro servers

The modules fit H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C and H12SSL-i boards and will not work in standard desktop systems. They cannot be mixed with unbuffered or registered ECC memory, so buyers needing consumer DIMMs or mixed populations must choose a different product.

Handles large multi-tasking workloads

The 256 GB total capacity supports virtualization, database caching and heavy multi-threaded applications with headroom to spare. Speed falls back to 2133, 2400, 2666 or 2933 MHz on older platforms, while the four-rank design maximises density per slot.

Pluspunten

  • 256 GB total capacity with two 128 GB modules
  • DDR4 3200 speed for high-throughput server workloads
  • ECC load-reduced design protects data integrity in critical systems
  • 2 V operation lowers power draw per module
  • Validated for Supermicro H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C, H12SSL-i motherboards

Specificaties

BrandOWC
Part Number3L2D44R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard H12DSG-O-CPU
Supermicro Motherboard H12DST-B
Supermicro Motherboard H12DSU-iN
Supermicro Motherboard H12SSL-C
Supermicro Motherboard H12SSL-i

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Vragen over dit artikel

Which Supermicro motherboards must I already have for this 256GB kit to be compatible?

The kit is validated for Supermicro H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C and H12SSL-i motherboards.

Can I keep my existing DDR4 2666 ECC LRDIMMs and add these 3200 CL22 modules alongside them?

Yes, the modules are backward compatible with 2133, 2400, 2666 and 2933 speeds, but all installed DIMMs must be ECC Load Reduced — mixing with unbuffered or registered ECC is not supported.

How do I confirm the 2 x 128GB modules are running at 3200 CL22 with ECC active after installation?

Check the BIOS memory information or OS tools such as dmidecode; they should report 3200 MT/s, CL22 latency, 1.2 V and ECC Load Reduced for each 128GB DIMM.

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