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Four green 288-pin DDR4 LRDIMM modules with black chips

OWC

OWC 1TB (4x256GB) DDR4 3200 CL22 288-pin LRDIMM memory upgrade

SKU CH-WBCC-SJKHS

Kit of four 256 GB DDR4 3200 CL22 288-pin ECC load-reduced DIMMs for servers and workstations

Capacity 1TB (4 x 256GB)

  • 1 TB total capacity in four 256 GB modules
  • DDR4 3200 CL22 ECC load-reduced for server reliability
  • 288-pin LRDIMM form factor at 1.2 V
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server-grade DDR4 LRDIMM kit

This kit provides one terabyte of DDR4 memory across four 256 GB load-reduced DIMMs. It is built for Supermicro, HP and Dell servers that require ECC load-reduced modules and cannot accept unbuffered or registered ECC memory. The 288-pin form factor fits compatible server and workstation boards.

DDR4 3200 CL22 interface limits

The modules run at 3200 MHz with a CAS latency of 22 and operate at 1.2 V. They are backward compatible with 2133, 2400, 2666 and 2933 MHz bus speeds, so the kit will clock down automatically when installed in slower platforms. Mixing with unbuffered or registered ECC DIMMs is not supported by the memory architecture.

288-pin LRDIMM build and connectors

Each stick uses a 288-pin load-reduced DIMM connector designed for server motherboards. The ECC load-reduced design reduces electrical load on the memory controller, allowing higher density per channel. The kit is JEDEC-standard and RoHS compliant, making it a warranty-safe upgrade for qualified Supermicro models including H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C and H12SSL-i.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $6,327.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).

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Specifications

No published specifications for this item yet.

Other versions of this model

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Questions about this item

How do I choose between the 1TB kit and smaller capacities?

This kit provides 1TB total using four 256GB modules. Select it when your server needs maximum capacity in a matched quad-channel set; choose a smaller kit only if your board has fewer slots or your workload fits in less memory.

What does the 3200MHz CL22 rating deliver in a live system?

The modules run at 3200MHz with CAS latency 22 at 1.2V, giving server workloads the full PC4-25600 bandwidth while maintaining ECC error correction and load-reduced signal integrity.

What does the PC4-25600 DDR4 interface cap in practice?

The DDR4 PC4-25600 interface tops out at 3200MHz, but the modules also downclock to 2933MHz, 2666MHz, 2400MHz or 2133MHz to match older server platforms without changing voltage.

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