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Green circuit board with black memory chips, thin rectangular SODIMM module

Computer Memory Solutions

Computer Memory Solutions CM2048642666SO 16GB DDR4 2666MHz SODIMM memory upgrade

SKU CH-0481-9W445

16 GB DDR4 SODIMM running at 2666 MHz for HP ProDesk 400 G4, 405 G4 and 600 G4 Desktop Mini systems

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 16 GB DDR4 2666 MHz boosts responsiveness for ProDesk 400 G4, 405 G4 and 600 G4 Mini
  • CL19 1.2 V unbuffered SODIMM keeps power draw low in compact desktops
  • 2Rx8 260-pin layout fits both memory slots up to 32 GB total
  • Major-brand chipset ensures stable operation in supported HP systems
  • Single 16 GB stick allows easy future expansion to dual-channel configuration

Targeted Upgrade

This 16 GB DDR4 SODIMM is built for HP ProDesk 400 G4, 405 G4 and 600 G4 Desktop Mini systems. It delivers a single 260-pin module rated at 2666 MHz with CL19 timings. The unbuffered, non-ECC design matches the factory specification for these compact business PCs.

Sustained Operation

Running at the standard 1.2 V, the module maintains its 2666 MHz data rate during extended workloads without requiring additional cooling. The dual-rank 2Rx8 organisation supports the platform's maximum 32 GB capacity across two slots. All installed memory will operate at the slowest module or processor limit.

Daily Fit

The low-profile stick has no heat spreader, so it seats cleanly in the tight Mini chassis. A 64-bit operating system is required to address the full 16 GB. Computer Memory Solutions provides a limited lifetime warranty against manufacturing defects when purchased directly from them.

How it compares

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

Price $76.99
Cheaper than about 71% 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 $4.81 per GB
Cheaper than about 79% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048642666SO
Total capacity16 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP/Compaq ProDesk 400 G4 Desktop Mini, ProDesk 405 G4 Desktop Mini, ProDesk 600 G4 Desktop Mini
In the box
Included items1 Memory RAM Stick

Questions about this item

How much heat and power does the 1.2 V DDR4 2666 module draw when running continuously?

The module operates at the standard DDR4 voltage of 1.2 V with no heat spreader, so thermal output stays low during all-day use.

What must my HP ProDesk Mini already have to accept this 260-pin SODIMM?

Your ProDesk 400 G4, 405 G4 or 600 G4 Desktop Mini needs a free DDR4 SO-DIMM slot; the system supports up to 32 GB across two sockets.

Will this CL19 2Rx8 stick slow down if I keep an older DDR4 module in the second slot?

Yes, all installed memory runs at the speed of the slowest module or the CPU limit, so mixing can reduce overall performance.

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