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Green 204-pin DDR3L SODIMM module with black chips

OWC

OWC 4GB DDR3L 1600 CL11 1.35V 204-pin SODIMM memory upgrade ThinkPad W550s X250 Yoga 460

SKU CH-GQWF-96A8X

4GB DDR3L 1600 SODIMM adds memory to ThinkPad W550s, X250 and Yoga 460

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 4GB capacity expands multitasking headroom for demanding workloads
  • DDR3L 1600MHz speed accelerates data throughput for responsive operation
  • 35V low voltage reduces power draw and heat output
  • 204-pin SODIMM form factor fits ThinkPad W550s, X250 and Yoga 460
  • JEDEC-compliant design ensures warranty-safe upgrade with broad compatibility

4GB DDR3L SODIMM for ThinkPad W550s X250 Yoga 460

This 4GB module is built for Lenovo ThinkPad W550s, X250 and Yoga 460 laptops. It uses 204-pin DDR3L technology at 1.35V and runs at 1600MHz with CL11 latency. The non-ECC unbuffered design fits the factory memory slots directly.

Who this suits and who it does not

Owners of the listed ThinkPad models who need a single 4GB upgrade module will find this part matches the required specifications. Systems that require ECC memory, registered DIMMs, a different voltage, or capacities beyond 4GB per slot cannot use this module. Buyers with other laptop models should verify their exact memory requirements before purchasing.

The specification that decides compatibility

The 204-pin DDR3L form factor operating at 1.35V with a CL11 1600MHz rating is the single specification that determines whether this module will work in your machine. Match these details against your system manual or the manufacturer memory configurator to confirm fit.

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 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.50 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1S6T32R804 GB
Total capacity4 GB
Product type204-Pin DDR3L Non-ECC SODIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsLenovo ThinkPad W550s
Lenovo ThinkPad X250
Lenovo ThinkPad Yoga 460

Other versions of this model

5 more in the same range

Questions about this item

What CAS latency does this DDR3L 1600 module run at?

This module operates at CL11, which is the timing the memory controller uses for each access cycle.

Does the module include a heat spreader for all-day operation?

No heat spreader is fitted; the SODIMM relies on the laptop's internal airflow to stay within its 1.35 V thermal envelope.

Which ThinkPad models must the buyer already own for this upgrade to fit?

The 204-pin DDR3L SODIMM is validated for Lenovo ThinkPad W550s, X250 and Yoga 460 systems.

More in Model-Specific Memory Upgrades

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