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Two green DDR4 SODIMM sticks, black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 16GB (2x8GB) DDR4 2400MHz SODIMM CL17 1.2V memory upgrade

SKU CH-G9QZ-NMK0B

16 GB DDR4 SODIMM kit at 2400 MHz CL17 for HP ProBook 470 G3, 470 G4, 640 G2 and 645 G3

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • Boosts multitasking with 16 GB dual-channel DDR4 kit
  • Runs at 2400 MHz CL17 for responsive system performance
  • Low 1.2 V operation reduces power draw and heat
  • Guaranteed compatibility with HP ProBook 470 G3, G4, 640 G2, 645 G3
  • 260-pin SODIMM form factor fits laptop memory slots directly

Targeted DDR4 upgrade kit

This 16 GB kit contains two 8 GB DDR4 SODIMM modules rated at 2400 MHz with CL17 timing. It is built for HP ProBook 470 G3, 470 G4, 640 G2 and 645 G3 notebooks that accept 260-pin unbuffered non-ECC memory. The kit raises the system to its supported memory ceiling in a single step.

260-pin DDR4 SODIMM form factor

Each stick uses the 260-pin SO-DIMM layout required by the listed ProBook models. The modules run at 1.2 V and carry a 2Rx8 organisation with major-brand chips. Installing a different pin count or voltage would prevent the laptop from booting.

Steady throughput at rated speed

Under sustained workloads the memory maintains its 2400 MHz data rate and 17-17-17 timings without thermal throttling, because the modules have no heat spreader and rely on the notebook’s internal airflow. The unbuffered design keeps latency consistent during long compile, rendering or multitasking sessions.

How it compares

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

Price $69.99
Cheaper than about 73% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $4.37 per GB
Cheaper than about 82% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024642400SO
Total capacity16 GB (2 × 8 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP/Compaq ProBook 470 G3470 G4, 640 G2, 645 G3
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will 2400 MHz DDR4 run at full speed in a ProBook 470 G3?

The ProBook 470 G3 supports DDR4 2400, so the kit operates at its rated 2400 MHz without downclocking.

Is this kit compatible with the 260-pin SODIMM slots in the listed HP models?

Yes, each module is a 260-pin DDR4 SO-DIMM, matching the slot type used in the ProBook 470 G3, 470 G4, 640 G2 and 645 G3.

Do the modules need a heat spreader to fit inside a ProBook 640 G2?

No, the sticks have no heat spreader, keeping them low-profile for the tight SODIMM bays in the 640 G2.

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