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Two green DDR3 SODIMM sticks with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM5126410600SODRH 8GB (2x4GB) DDR3 1333MHz CL7 1.5V 204-pin SODIMM

SKU CH-0NSQ-JBGJD

8GB DDR3 kit with two 4GB SODIMM modules running at 1333MHz CL7 for HP ProBook 4720S and 4520S notebooks

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8GB dual-channel kit boosts multitasking on HP ProBook 4720S and 4520S
  • DDR3-1333 CL7 timing cuts latency for snappier response
  • 5V unbuffered SODIMM drops straight into 204-pin slots
  • Major-brand chips ensure stable operation at rated speed
  • Two matched 4GB modules enable full dual-channel bandwidth

Target Notebooks

This kit is built for the HP ProBook 4720s and 4520s notebooks. It provides 8 GB of total capacity using two 4 GB modules. The memory is intended for owners of those specific models who want to reach the maximum supported memory. It is not for laptops that require a different pin count, voltage or DDR generation.

Deciding Specification

The modules run at DDR3-1333 (PC3-10600) with CL7 timing at 1.5 V. They are unbuffered, non-ECC SODIMMs using a 2Rx8 organisation. If your ProBook needs a different speed, latency or voltage this kit will not be compatible.

Installation Notes

Each stick fits a standard 204-pin SODIMM slot and the notebook has two sockets. No heat spreader is fitted so clearance is minimal. The only common issue is mixing these modules with existing RAM that has different timing or density, which can prevent the system from booting.

How it compares

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

Price $38.99
Cheaper than about 81% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $4.87 per GB
Cheaper than about 78% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126410600SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHp Probook 4720S, 4520S Notebook
In the box
Included items2 Memory RAM Sticks

Questions about this item

How does the 1333 MHz speed and CL7 latency perform in an HP ProBook 4720S or 4520S?

At 1333 MHz with CL7 timing, these modules run at the notebook's native DDR3-10600 rate, delivering the low-latency responsiveness the platform expects without downclocking.

What does the PC3-10600 designation limit on these laptops?

PC3-10600 caps the transfer rate at 10600 MB/s; the ProBook 4720S and 4520S memory controllers cannot exceed this bandwidth regardless of module rating.

Will the 204-pin SO-DIMM sticks fit the two memory slots in a ProBook 4520S?

Yes, each 4 GB stick uses the standard 204-pin SO-DIMM form factor that matches the two slots in the ProBook 4520S and 4720S.

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