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Single green 288-pin DDR4 ECC registered RDIMM module, no heat spreader

OWC

OWC 128GB DDR4 3200 ECC Registered RDIMM 288-pin 1.2V CL22 8Rx4 for ASUS RS700 RS720

SKU CH-H2V7-JQMCH

A 128GB DDR4 3200 ECC Registered RDIMM for ASUS RS700 and RS720 rack servers

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • High-density 128 GB single-module upgrade for dense server configurations
  • ECC registered design detects and corrects data errors for reliable operation
  • JEDEC-standard DDR4 3200 CL22 at 1.2 V ensures broad platform compatibility
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz memory speeds
  • Validated for ASUS RS700 and RS720 rack server families

OWC 128GB DDR4 3200 ECC Registered RDIMM

This 128GB DDR4 3200 ECC Registered RDIMM is built for ASUS rack servers including the RS700 and RS720 series. It targets administrators upgrading memory in compatible workstation or NAS systems. The single module delivers a 128GB capacity at 1.2V.

DDR4 3200 registered ECC limits

Registered ECC memory cannot be mixed with unbuffered or load-reduced modules in the same system. The 288-pin DDR4 form factor fits only slots wired for registered operation. Backward compatibility covers 2133MHz, 2400MHz, 2666MHz and 2933MHz bus speeds.

8Rx4 rank decides fit

The 8Rx4 organisation determines whether the server memory controller can address the full 128GB per DIMM. Verify the platform qualification list before purchase because consumer desktop boards will not support this registered ECC module.

How it compares

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

Price $692.99
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 $5.41 per GB
Cheaper than about 71% of the 20,941 comparable items (median $8.19 per GB).

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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

Questions about this item

Should I pick the 128GB 8Rx4 module or a lower-capacity option for my ASUS RS700 or RS720 server?

This is a single 128GB DDR4 3200 ECC Registered RDIMM with an 8Rx4 organisation. Choose it when your board has free 288-pin slots and you need maximum capacity per slot; select a smaller module only if your configuration requires more ranks spread across more DIMMs.

What does the 3200MHz CL22 rating deliver once the module is installed in an ASUS rack server?

The module runs at DDR4 3200 with CAS latency 22 at 1.2V, providing the rated speed and timing the server's memory controller expects for stable ECC registered operation.

Is the PC4-25600 DDR4 3200 interface backward-compatible with slower DDR4 speeds in these ASUS servers?

Yes — the spec lists backward compatibility with 2133MHz, 2400MHz, 2666MHz and 2933MHz DDR4, so the module will clock down automatically if the platform requires a lower frequency.

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