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Green circuit board with black memory chips and gold edge connector

OWC

OWC 128GB DDR5 4800 CL40 4Rx4 ECC Registered RDIMM 288-pin 1.1V Gigabyte G493 G593

SKU CH-2E1V-8KTEF

A 128GB DDR5 4800 CL40 ECC registered RDIMM for Gigabyte G493 and G593 servers

  • Capacity128GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS Latency40
  • Voltage1.1V
  • ECCYes

Capacity 128GB

  • 128 GB capacity supports large workloads
  • DDR5 4800 speed delivers high throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Qualified for Gigabyte G493 and G593 servers

128 GB DDR5 ECC RDIMM for Gigabyte servers

This 128 GB DDR5 4800 CL40 4Rx4 ECC Registered RDIMM is built for Gigabyte G493 and G593 server platforms. It targets administrators who need single-module density in workstation, NAS, server or network-switch chassis.

Registered 4Rx4 layout at 1.1 V

The module uses a registered 4Rx4 organisation running at 1.1 V with CAS latency 40. That combination of rank structure and ECC registration is the single spec that determines whether the part will post in the qualified Gigabyte systems.

Keyed 288-pin installation with no heat spreader

The bare 288-pin DIMM seats like any RDIMM; align the notch, press until the latches click. Common issues are mixing registered modules with unbuffered or load-reduced DIMMs, or populating slots the platform does not validate for 4Rx4 density.

Highlights

  • 128 GB capacity supports large workloads
  • DDR5 4800 speed delivers high throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Qualified for Gigabyte G493 and G593 servers

Specifications

BrandOWC
Part Number4R8D54R4128G
Capacity128GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS Latency40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemGigabyte G493-ZB2
Gigabyte G493-ZB3
Gigabyte G593-ZD1
Gigabyte G593-ZD2
Gigabyte G593-ZX1

Other versions of this model

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Questions about this item

How does the 4800 MT/s speed translate to actual throughput in a Gigabyte G493 or G593 server?

The module runs at DDR5-4800, delivering up to 38400 MB/s of peak bandwidth per DIMM when the platform operates at its rated data rate.

What does the PC5-38400 designation cap in practice?

PC5-38400 confirms a maximum transfer rate of 38400 MB/s under JEDEC standard timings; the server memory controller cannot exceed this limit with this DIMM.

Will the 288-pin registered DIMM fit the memory slots in a Gigabyte G493-ZB2?

Yes, the 288-pin ECC registered form factor matches the DDR5 RDIMM slots on the listed Gigabyte G493 and G593 models.

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