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

Computer Memory Solutions

Computer Memory Solutions CM5126412800DIMM 4GB DDR3 1600 CL11 1.5V 240-pin memory upgrade

SKU CH-F555-FGG5G

4GB DDR3 1600 CL11 1.5V 240-pin DIMM validated for HP ProDesk 400 G2.5

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • 4 GB capacity expands system memory for multitasking
  • DDR3 1600 MHz speed matches ProDesk 400 G2.5 specification
  • CL11 latency supports responsive application performance
  • 5 V operation aligns with platform power requirements
  • 240-pin DIMM form factor fits designated desktop slots

HP ProDesk 400 G2.5 compatible DDR3 module

This 4 GB DDR3 DIMM is built for the HP/Compaq ProDesk 400 G2.5 desktop. It runs at 1600 MHz with CL11 timing at 1.5 V. The single-rank, unbuffered stick uses major-brand chips and carries no heat spreader.

Steady throughput at rated speed

Under sustained load the module maintains its 1600 MHz data rate and 11-11-11 timings without throttling. The unbuffered, non-ECC design delivers consistent bandwidth for typical office workloads and multitasking. System memory ceiling is 16 GB across two or four slots.

Low-voltage operation keeps thermals modest

At 1.5 V the stick draws minimal power and produces little heat even during extended use. With no heat spreader or active cooling required it runs silently inside the ProDesk chassis. The low thermal output helps keep overall system fan noise down.

How it compares

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

Price $11.99
Cheaper than about 96% 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 $3.00 per GB
Cheaper than about 90% 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 nameComputer Memory Solutions
Model nameCM5126412800DIMM
Total capacity4 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHP/Compaq ProDesk 400 G2.5
In the box
Included items1Memory Ram Stick

Questions about this item

Does the 1.5 V DDR3-1600 module draw extra power or run hotter when the ProDesk 400 G2.5 is under sustained load?

The stick is a standard 1.5 V unbuffered DDR3 DIMM rated at CL11 11-11-11; it operates at the voltage and timings set by the HP platform, so power draw and thermals stay within normal DDR3 limits for that system.

What must the HP ProDesk 400 G2.5 already have for this 240-pin DIMM to be recognised?

The desktop needs a free DDR3 240-pin slot and a BIOS that supports 4 GB non-ECC unbuffered modules up to the platform maximum of 16 GB across two or four sockets.

Will this CL11 1600 MHz stick down-clock reliably if the ProDesk 400 G2.5 populates the remaining slots with slower DDR3 modules?

Yes — the module follows JEDEC DDR3-1600 specifications, so the memory controller will negotiate the highest common speed and latency across all installed DIMMs without user intervention.

More in Model-Specific Memory Upgrades

Similar items