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Green circuit board with black memory chips and gold edge connector

OWC

OWC 4GB DDR3 1333 PC3-10600 CL9 2Rx8 204-pin 1.5V Non-ECC SODIMM for HP ProBook 4431s 4435s 4436s 4440s 4520s

SKU CH-6E46-XPC0M

4GB DDR3 1333MHz SODIMM module upgrades HP ProBook 4431s, 4435s, 4436s, 4440s and 4520s laptops

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • Boosts system responsiveness with 4GB DDR3 1333MHz module
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • CL9 latency and 1.5V voltage ensure stable operation
  • 2Rx8 dual-rank design on 204-pin SODIMM form factor
  • Validated for HP ProBook 4431s 4435s 4436s 4440s 4520s

OWC 4GB DDR3 SODIMM for HP ProBook

This OWC module is a 4GB DDR3 1333 PC3-10600 CL9 2Rx8 204-pin 1.5V Non-ECC SODIMM built for HP ProBook 4431s, 4435s, 4436s, 4440s and 4520s. It delivers a JEDEC-standard memory upgrade that meets OEM specifications. The single stick installs in a standard laptop SO-DIMM slot.

Suits owners of listed ProBooks needing 4GB DDR3

Buyers whose laptop requires a different DDR generation, a higher speed grade, ECC support or a larger single-module capacity should look elsewhere. The module is unbuffered and non-ECC, so it will not work in systems that demand registered or error-correcting memory. It also does not fit desktops or servers using full-size DIMM slots.

The decisive spec is DDR3 1333 PC3-10600 SODIMM

Your HP ProBook must accept DDR3 1333 PC3-10600 204-pin SO-DIMM modules at 1.5V without ECC. If the service manual specifies a different voltage, speed, pin count or memory technology, this module will not be compatible. Matching that exact DDR3 1333 SODIMM requirement is the only way to ensure the upgrade works.

How it compares

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

Price $19.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.00 per GB
Cheaper than about 77% 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 number1S3D32R804 GB
Total capacity4 GB
Product type204-Pin DDR3 Non-ECC SODIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHP ProBook 4431s
HP ProBook 4435s
HP ProBook 4436s
HP ProBook 4440s
HP ProBook 4520s

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 4 GB module or add a second one for 8 GB total?

The module is a single 4 GB stick; adding a second identical module will give 8 GB if your ProBook has two slots and the chipset supports that capacity.

What does the 1333 MHz rating deliver in everyday use?

At 1333 MHz with CL9 latency the memory runs at the JEDEC-standard DDR3 1333 speed the listed ProBooks expect, so the system will recognise it without down-clocking.

Does the 204-pin SODIMM interface limit bandwidth on these laptops?

The 204-pin DDR3 SODIMM form factor is the native interface for the ProBook 4431s, 4435s, 4436s, 4440s and 4520s, so it matches the memory controller without an adapter.

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