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Green rectangular circuit board with black memory chips and gold edge connectors

OWC

OWC 4GB DDR4 2400MHz CL17 1.2V 288pin UDIMM 2U4D41R804GB

SKU CH-P1R1-HV9XA

A 4GB DDR4 2400MHz UDIMM module for HP ProDesk 400 G4 and 600 G3 desktops

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Boosts HP ProDesk 400 G4 and 600 G3 responsiveness
  • 4GB DDR4 2400MHz CL17 module installs easily
  • Low 1.2V operation cuts power draw
  • JEDEC compliant for warranty-safe upgrades
  • Backward compatible with 2133MHz systems

HP ProDesk upgrade module

This 4 GB DDR4 UDIMM is built for HP ProDesk 400 G4 and 600 G3 small-form-factor and tower systems. It adds memory capacity without requiring ECC or registered buffers. The unbuffered design keeps installation straightforward for compatible desktops and workstations. Buyers who need ECC error correction or higher-density modules should look elsewhere.

Sustained-load stability

Rated at 2400 MHz with CL17 latency and 1.2 V operation, the module meets JEDEC PC4-19200 specifications for steady throughput. It also runs at 2133 MHz when the platform requires a lower speed. The single-rank 1Rx8 organisation delivers consistent bandwidth during extended workloads. Systems that demand voltages other than 1.2 V or speeds above 2400 MHz will not benefit from this part.

Tool-free DIMM installation

The 288-pin edge connector seats directly into standard DDR4 UDIMM slots; no heat spreader means a low profile that fits tight SFF chassis. Alignment notches prevent backwards insertion, and the unbuffered layout avoids register-related POST failures. Builders who cannot access the motherboard slots or who need registered memory will find this module unsuitable.

How it compares

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

Price $26.99
Cheaper than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $6.75 per GB
Cheaper than about 59% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2U4D41R804 GB
Total capacity4 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP ProDesk 400 G4 SFF
HP ProDesk 400 G4 Tower
HP ProDesk 600 G3 SFF
HP ProDesk 600 G3 Tower

Other versions of this model

5 more in the same range

Questions about this item

Does the 1.2V DDR4 module run hot or draw extra power in an HP ProDesk 400 G4 SFF that stays on all day?

The stick operates at the standard 1.2V JEDEC voltage and has no heat spreader, so it adds minimal heat and power draw inside the small-form-factor chassis.

What must the HP ProDesk 600 G3 Tower already have for this 288-pin UDIMM to work?

The system needs a free DDR4 DIMM slot that accepts 2400MHz PC4-19200 unbuffered non-ECC memory; the module is single-rank 1Rx8 and requires no extra hardware.

Will this 2400MHz CL17 kit down-clock reliably beside existing 2133MHz sticks in an HP ProDesk 400 G4 Tower?

Yes, the module is backward compatible with 2133MHz operation, so it will match the slower JEDEC speed and timings of the installed memory automatically.

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