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Green circuit board with gold edge connectors and black memory chips

OWC

OWC 2GB DDR3 1333 CL9 1Rx8 1.5V SODIMM memory upgrade

SKU CH-RB0V-D9PKS

A 2 GB DDR3 SODIMM running at 1333 MHz with CL9 latency for HP ProBook 4330s, 4331s, 4340s, 4421s and 4430s

  • Total capacity2 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Boost multitasking with 2GB DDR3 1333 CL9 module
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • 5V low-voltage design reduces power consumption
  • 204-pin SODIMM fits HP ProBook 4330s 4331s 4340s 4421s 4430s
  • Easy DIY installation with OWC video guide

HP ProBook DDR3 SODIMM Upgrade

This 2 GB DDR3 1333 CL9 module is built for HP ProBook 4330s, 4331s, 4340s, 4421s and 4430s notebooks. It adds 204-pin non-ECC unbuffered memory to systems that accept PC3-10600 SO-DIMMs running at 1.5 V. Buyers who want more storage or need ECC support should look elsewhere.

Simple Laptop Memory Installation

Most ProBook models expose the SODIMM slot under a bottom access panel, so the module drops in without tools. Align the notch, press firmly until the side clips snap, then replace the cover. The usual issue is mixing speeds or capacities; keep all slots identical at 1333 MHz CL9 to avoid boot failures.

DDR3 1333 SO-DIMM Practical Limits

The DDR3 SO-DIMM interface caps at 1333 MHz with 1.5 V operation, so this module cannot run faster or at lower voltage. A single 2 GB stick leaves total capacity limited by the laptop's slot count and chipset maximum. Systems needing higher bandwidth or larger modules require a newer memory generation.

How it compares

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

Price $17.99
Cheaper than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 2 GB
Lower than about 95% of the 20,941 comparable items (median 32 GB).
Price per GB $9.00 per GB
Typical for this category: the median of 20,941 items is $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 number1S3D31R802 GB
Total capacity2 GB
Product type204-Pin DDR3 Non-ECC SODIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHP ProBook 4330s
HP ProBook 4331s
HP ProBook 4340s
HP ProBook 4421s
HP ProBook 4430s

Other versions of this model

5 more in the same range

Questions about this item

How do I confirm the module is running at 1333 MHz CL9 after installation?

Open the BIOS or a system-information tool such as CPU-Z and verify the memory tab shows DDR3-1333 with CAS latency 9 and 1.5 V operation.

What comes in the box and what must I source separately?

The package contains one 2 GB 204-pin DDR3 SODIMM module; no tools, screws or additional components are included.

Which capacity should I choose for an HP ProBook 4330s?

This part is a single 2 GB module; add a second identical module if your ProBook 4330s has two slots and you want 4 GB total.

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