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 bare circuit board with black memory chips and gold edge connectors

OWC

OWC 16GB DDR4 2666MHz CL19 1.2V 288-Pin Non-ECC UDIMM Memory Upgrade

SKU CH-CGYK-TYFYT

16 GB DDR4-2666 CL19 UDIMM for HP EliteDesk 705 G4 Tower, 800 G4 SFF and 800 G4 Tower

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 16GB capacity for smoother multitasking
  • 2666MHz DDR4 speed for responsive performance
  • CL19 latency with 1.2V low-voltage operation
  • 288-pin non-ECC UDIMM fits HP EliteDesk 705 G4 Tower, 800 G4 SFF and 800 G4 Tower
  • Backward compatible with 2133MHz and 2400MHz systems

16GB DDR4 2666MHz UDIMM for HP EliteDesk

This 16GB DDR4 module runs at 2666MHz with CL19 latency and 1.2V operation. It is a 288-pin non-ECC unbuffered DIMM built to JEDEC standards. The kit is validated for HP EliteDesk 705 G4 Tower, 800 G4 SFF and 800 G4 Tower systems.

Suits owners of listed EliteDesk models needing

Buyers with other desktops, workstations or NAS units should verify 288-pin DDR4 support and maximum module capacity before purchasing. Systems requiring ECC or registered memory cannot use this module. Laptops and small-form-factor boards using SO-DIMM slots are incompatible.

Installation is a standard DIMM seat

Align the notch, press firmly until the retention clips click, then power on. Common issues include not seating the module fully, mixing speeds that force the system to the lowest common speed, or exceeding the motherboard's maximum capacity per slot.

How it compares

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

Price $86.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.44 per GB
Cheaper than about 71% 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 number2U6D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP EliteDesk 705 G4 Tower
HP EliteDesk 800 G4 SFF
HP EliteDesk 800 G4 Tower

Other versions of this model

5 more in the same range

Questions about this item

Does my HP EliteDesk 800 G4 Tower need a free 288-pin DDR4 slot to install this 16GB module?

Yes, the module is a 288-pin DDR4 UDIMM and requires an available DDR4 DIMM slot on the motherboard.

Will this 2666MHz CL19 module downclock to run alongside my existing 2400MHz DDR4 sticks?

The module is backward compatible with 2133MHz and 2400MHz speeds and will run at the highest common speed supported by all installed modules.

How can I confirm the system recognises the full 16GB capacity after installation?

Check the total installed memory in Windows Task Manager or the BIOS/UEFI setup screen; it should show the new 16GB module added to your existing memory.

More in Model-Specific Memory Upgrades

Similar items