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Green rectangular circuit board with gold edge connector and black memory chips

OWC

OWC 2S1D42R808GB 8GB DDR4 2133MHz CL15 1.2V 260pin SODIMM HP ProBook 430 G4 470 G4 640 G2 650 G2 655 G3

SKU CH-1HAM-49NZD

8GB DDR4 2133MHz CL15 SODIMM for HP ProBook 430 G4, 470 G4, 640 G2, 650 G2 and 655 G3

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 8GB capacity adds multitasking headroom for demanding workloads
  • DDR4 2133MHz CL15 speed delivers responsive system performance
  • 2V low voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits HP ProBook 430 G4 470 G4 640 G2 650 G2 655 G3
  • JEDEC compliant and ROHS certified for warranty-safe upgrade

Targeted 8GB DDR4 upgrade for select HP ProBooks

This 8GB DDR4 2133MHz CL15 SODIMM is built specifically for HP ProBook 430 G4, 470 G4, 640 G2, 650 G2 and 655 G3 notebooks. It delivers a JEDEC-standard PC4-17000 module that fits the 260-pin slot and runs at 1.2V without ECC or buffering.

Steady multitasking headroom under continuous load

The CL15 latency and 2Rx8 rank organisation keep data flowing during extended sessions with many browser tabs, documents or background services. Because the module follows strict JEDEC timings, the memory controller can sustain its rated throughput without throttling or timing violations.

Cool, quiet operation at standard laptop voltage

Operating at 1.2V, the unbuffered Non-ECC stick adds minimal heat to the system's existing thermal envelope. No heat spreader is fitted, so the module relies on the chassis airflow already present in the compatible ProBook designs, keeping fan behaviour unchanged.

How it compares

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

Price $43.99
Cheaper than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.50 per GB
Cheaper than about 70% 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 nameOWC
Part number2S1D42R808 GB
Total capacity8 GB
Product type260-Pin DDR4 Non-ECC SODIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP ProBook 430 G4
HP ProBook 470 G4
HP ProBook 640 G2
HP ProBook 650 G2
HP ProBook 655 G3

Other versions of this model

5 more in the same range

Questions about this item

Does the OWC 2S1D42R808GB 8GB DDR4 2133MHz CL15 1.2V SODIMM run hot or draw extra power when the laptop is under load all day?

The module operates at the standard JEDEC 1.2V and has no heat spreader, so it adds minimal heat and power draw during sustained use.

What does the buyer need to already own for this 260-pin DDR4 SODIMM to work?

A compatible HP ProBook 430 G4, 470 G4, 640 G2, 650 G2 or 655 G3 with a free DDR4 SODIMM slot.

How does this CL15 2133MHz DDR4 module behave alongside the factory memory already in an older ProBook?

It will run at the system's lowest common speed and latency; the 2Rx8 rank is compatible with the listed ProBook platforms.

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