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Green circuit board with black memory chips and gold edge connector

OWC

OWC 128GB DDR4 3200 ECC Registered RDIMM 8Rx4 288-pin 1.2V CL22 memory upgrade

SKU CH-836H-Z90R4

128 GB DDR4 3200 ECC registered RDIMM for Gigabyte G492 and H242 servers

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • 128 GB single module boosts server capacity
  • DDR4 3200 speed with CL22 latency
  • ECC registered design prevents data errors
  • 2 V operation lowers power draw
  • Validated for Gigabyte G492 and H242 servers

Server-grade ECC RDIMM for Gigabyte platforms

This OWC module is a 128GB DDR4 3200 ECC Registered DIMM built for Gigabyte G492 and H242 server families. It targets administrators who need high-density registered memory with error correction for workloads that cannot tolerate data corruption. The single-stick design simplifies capacity scaling in qualified chassis.

Registered ECC cannot mix

The 8Rx4 registered architecture requires a memory controller that supports registered operation and will not function in standard desktop boards. Backward compatibility extends to 2133, 2400, 2666 and 2933 MT/s bus speeds, but the module must remain in a registered-only channel population. Mixing registered and unbuffered types on the same platform causes boot failure.

128GB per DIMM decides if density fits your slot

Each stick delivers 128GB at 1.2V with CL22 timing, so total system capacity scales directly with the number of populated slots. Buyers needing less than 128GB per module or systems limited to lower single-DIMM ceilings should select a lower-capacity part.

How it compares

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

Price $680.99
Pricier than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
CAS latency 22
Typical for this category: the median of 483 items is 22.
Price per GB $5.32 per GB
Cheaper than about 72% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number3R2D48R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latency22
ECC supportYes
Buffer typeRegistered
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsGigabyte Server G492-H80
Gigabyte Server G492-HA0
Gigabyte Server G492-Z51
Gigabyte Server G492-Z52
Gigabyte Server H242-Z10

Questions about this item

Is this a single 128GB module or a kit of smaller DIMMs?

The upgrade consists of one 128GB DDR4 3200 PC4-25600 CL22 8Rx4 288-pin 1.2V ECC Registered DIMM.

What real-world speed will I see if my server only supports 2666MHz?

The module is backward compatible and will run at 2666MHz with CL22 latency when installed in a system limited to that speed.

Does the 288-pin ECC Registered interface limit the maximum capacity per slot?

The 288-pin ECC Registered RDIMM form factor supports this 128GB 8Rx4 module; capacity per slot is defined by the server's memory controller, not the pin count.

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