We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

OWC

OWC 8GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM Memory Upgrade

SKU CH-1RHN-YHCKA

8GB DDR4 2666MHz CL19 UDIMM module for HP ProDesk 400 G5, 405 G4 and 600 G4 desktops

  • Capacity8GB
  • Type288-Pin DDR4 Non-ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • Boost performance with 8GB DDR4 2666MHz CL19 module
  • Cut power draw using 1.2V low-voltage operation
  • Fit HP ProDesk 400 G5, 405 G4, 600 G4 systems
  • Install easily in standard 288-pin UDIMM desktop slots
  • Run reliably with JEDEC and RoHS compliant design

Compatible 8GB DDR4 UDIMM for HP ProDesk

This 8GB DDR4 2666MHz CL19 module is built for HP ProDesk 400 G5 SFF, 400 G5 Tower, 405 G4 SFF, 600 G4 SFF and 600 G4 Tower systems. It uses a 288-pin unbuffered non-ECC design running at 1.2V. The kit provides a straightforward memory upgrade for those supported desktops.

Suitable for listed HP desktops.

Buyers with the exact HP ProDesk models listed can install this DIMM to add 8GB of capacity. Systems that require ECC or registered memory cannot use this module. Laptops and small-form-factor devices needing 260-pin SO-DIMMs are also incompatible. Check your motherboard manual before purchasing.

2666MHz CL19 speed rating

The module operates at DDR4 2666 (PC4-21300) with a CAS latency of 19. It is backward compatible with 2133MHz and 2400MHz bus speeds. This speed rating is the key specification that determines whether the part matches your system's memory controller requirements.

Highlights

  • Boost performance with 8GB DDR4 2666MHz CL19 module
  • Cut power draw using 1.2V low-voltage operation
  • Fit HP ProDesk 400 G5, 405 G4, 600 G4 systems
  • Install easily in standard 288-pin UDIMM desktop slots
  • Run reliably with JEDEC and RoHS compliant design

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 G5 SFF
HP ProDesk 400 G5 Tower
HP ProDesk 405 G4 SFF
HP ProDesk 600 G4 SFF
HP ProDesk 600 G4 Tower

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 288-pin DDR4 module ever need a heat spreader added later?

No heat spreader is included or required; the module runs at the standard 1.2 V JEDEC voltage without one.

What speed ceiling appears first when the memory runs continuously at 2666 MHz?

The CL19 latency at 2666 MHz is the limiting timing; the module does not support higher frequencies.

How much power does the 8 GB stick draw during all-day operation?

At the rated 1.2 V the module consumes only a few watts, producing minimal heat and no audible noise.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.