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Green rectangular SO-DIMM module with gold contacts and black chips

Kingston Technology Corp.

Kingston Technology Corp. KNWMX1-ETB 4GB DDR3 SO-DIMM 1600MHz laptop memory accessory

SKU CH-74HA-8CKY2 MPN KNWMX1-ETB

4GB DDR3 1600MHz SO-DIMM laptop memory module with CL11 latency and 1.35V operation

  • 4 GB DDR3 capacity expands laptop multitasking headroom
  • 1600 MHz PC3-12800 speed delivers responsive data throughput
  • CL11 CAS latency keeps access delays low
  • 35 V low-voltage operation reduces system power draw
  • 204-pin SO-DIMM form factor fits standard laptop slots

Product Identity

The Kingston KNWMX1-ETB is a 4GB DDR3 SO-DIMM module built for laptops that accept 204-pin memory. It runs at 1600MHz with a CAS latency of 11 and operates at 1.35V. The non-ECC, single-rank design suits mainstream notebook upgrades or repairs.

Upgrade Context

This module replaces an existing stick or fills an empty slot in systems qualified for PC3-12800 speeds. The jump is worthwhile when the current memory is slower than 1600MHz or when total capacity limits multitasking. Buyers needing more than 4GB per slot or a different voltage should verify compatibility first.

Sustained Behaviour

Under continuous workloads the module maintains its rated 1600MHz frequency and CL11 timing at 1.35V. The low-voltage DDR3 construction keeps thermal output modest during extended sessions. Stability relies on the laptop's own memory controller and cooling solution.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 55% of the 8,808 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the 204-pin SO-DIMM fit my laptop memory slot?

The module uses the standard 204-pin SO-DIMM form factor used by most DDR3 laptops; verify your system accepts DDR3 before purchasing.

What is the correct way to seat the module so the 1Rx8 rank is recognised?

Insert the stick at an angle until the gold contacts disappear, then press down firmly until both side clips click — partial seating is the most common error.

When should I consider replacing this 4GB DDR3 module?

Replace it if the system fails memory diagnostics, shows repeated BSODs, or if you upgrade to a platform that requires a higher speed than 1600MHz or a voltage other than 1.35V.

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