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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 8GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM for HP ProDesk 400 G6 600 G5

SKU CH-8W3Z-1E7N2

An 8 GB DDR4 2666 MHz CL19 UDIMM validated for HP ProDesk 400 G6 and 600 G5 desktops

  • Capacity8GB
  • Type288-Pin DDR4 Non-ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • 8GB DDR4 boosts multitasking on HP ProDesk 400 G6 and 600 G5
  • 2666 MHz CL19 speed matches factory specs for stable operation
  • 2 V low voltage reduces power draw and heat
  • 288-pin UDIMM fits SFF and Tower chassis without adapters
  • Backward compatible with 2133 MHz and 2400 MHz systems

OWC 8GB DDR4 2666MHz UDIMM

This OWC module adds 8GB of DDR4 memory to compatible HP ProDesk desktops. It fits the 400 G6 SFF, 400 G6 Tower, 600 G5 SFF and 600 G5 Tower models. The unbuffered 288-pin DIMM runs at 1.2V with CL19 latency. It is a straightforward upgrade for office workstations needing more multitasking headroom.

JEDEC DDR4 2666 standard limits

The module operates at the JEDEC DDR4 2666 (PC4-21300) specification with CL19 timing. It will downclock automatically to 2400MHz or 2133MHz if the system memory controller requires a lower speed. The 1.2V voltage and non-ECC unbuffered design follow the standard desktop UDIMM profile. Systems that require ECC or registered memory cannot use this stick.

Upgrading from 4GB or single-channel

Replacing a single 4GB module or adding this stick to an empty slot doubles capacity and enables dual-channel bandwidth when paired with an identical module. The jump is worth it when the current memory limit forces frequent paging or prevents running multiple business applications together. Buyers who need ECC error correction or registered signal buffering for server-class stability should look elsewhere.

Highlights

  • 8GB DDR4 boosts multitasking on HP ProDesk 400 G6 and 600 G5
  • 2666 MHz CL19 speed matches factory specs for stable operation
  • 2 V low voltage reduces power draw and heat
  • 288-pin UDIMM fits SFF and Tower chassis without adapters
  • Backward compatible with 2133 MHz and 2400 MHz systems

Specifications

BrandOWC
Part Number2U6D41R808GB
Capacity8GB
Type288-Pin DDR4 Non-ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemHP ProDesk 400 G6 SFF
HP ProDesk 400 G6 Tower
HP ProDesk 600 G5 SFF
HP ProDesk 600 G5 Tower

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Questions about this item

Should I pick the 8 GB stick or add a second one for dual-channel?

This module is a single 8 GB DDR4 2666 MHz CL19 UDIMM. Adding a matching second stick enables dual-channel bandwidth on the supported HP ProDesk 400 G6 and 600 G5 platforms.

Will the 2666 MHz rating actually run at that speed in my ProDesk?

The memory is rated at DDR4 2666 (PC4-21300) CL19 1.2 V. The listed HP desktops support that speed natively, so the module will operate at 2666 MHz without manual tuning.

Is the 288-pin DDR4 interface limited to 2666 MHz on these desktops?

The 288-pin DDR4 UDIMM runs at 2666 MHz on the compatible systems and will also down-clock to 2400 MHz or 2133 MHz if the platform requires it.

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