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Two green circuit boards with black memory chips, gold edge connectors, no heat spreaders

Computer Memory Solutions

Computer Memory Solutions CM5126410600SODRH 8GB (2x4GB) DDR3 1333MHz CL7 1.5V SODIMM for HP Probook 4720S

SKU CH-3YT4-E18JM

8GB DDR3 SODIMM kit (2×4GB) running at 1333 MHz CL7 for HP ProBook 4720S

  • 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 headroom
  • CL7 latency tightens response at 1333MHz
  • 5V standard voltage matches notebook spec
  • 204-pin SODIMM fits HP ProBook 4720S slots
  • Two matched 4GB modules ensure stable paired operation

HP ProBook 4720S Memory Kit

This 8 GB kit contains two 4 GB DDR3 SODIMM modules built for the HP ProBook 4720S notebook. It restores dual-channel bandwidth when both slots are populated. The unbuffered, non-ECC design matches the original specification for mainstream mobile workloads.

204-Pin SO-DIMM Build

Each stick uses a standard 204-pin edge connector that slots directly into the laptop memory sockets. Low-profile chips sit flush without a heat spreader so the module clears tight chassis clearances. Gold contacts resist oxidation through repeated thermal cycles in portable use.

Upgrade From 4 GB Single Channel

Replacing a single 4 GB module with this pair doubles capacity and enables dual-channel operation for measurable throughput gains. The jump is worthwhile when multitasking causes frequent paging or when the current stick runs at a slower CAS latency. Buyers needing 16 GB total or ECC protection should look elsewhere.

How it compares

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

Price $34.99
Cheaper than about 83% 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 $4.37 per GB
Cheaper than about 82% 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 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 Notebook
In the box
Included items2 Memory RAM Sticks

Questions about this item

What does the DDR3 1333 (PC3-10600) interface mean for real-world speed?

The kit runs at DDR3 1333 with a PC3-10600 rating and CL7 7-7-7 timings at 1.5V, delivering the standard peak transfer rate for that specification.

Will the 204-pin SODIMM sticks fit inside my HP ProBook 4720S?

Yes, each module is a 204-pin DDR3 SO-DIMM without a heat spreader, matching the slot and low-profile clearance of the ProBook 4720S.

How do I install the two 4 GB modules, and what step do people often miss?

Power off, remove the battery, open the memory door, insert both sticks at the same angle until the clips click, then replace the door and battery before booting.

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