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Green circuit board with black memory chips and gold edge connector

OWC

OWC 4GB DDR3L 1600 CL11 1.35V SODIMM for ThinkPad T560 W540 W541 X250 memory upgrade

SKU CH-VGA9-27PFF

4GB DDR3L 1600 SODIMM upgrades compatible ThinkPad T560, W540, W541 and X250 models

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Designed for ThinkPad T560 W540 W541 X250
  • JEDEC and RoHS compliant memory module
  • Low 1.35V DDR3L 1600 CL11 operation
  • Single 4GB 204-pin SODIMM upgrade
  • Tested to meet OEM manufacturer specifications

DDR3L 1600 SODIMM for ThinkPad

This OWC module provides 4 GB of DDR3L memory at 1600 MT/s with CL11 latency and 1.35 V operation. It uses a 204-pin unbuffered non-ECC SODIMM form factor and carries a 1Rx8 rank configuration. The part is validated for Lenovo ThinkPad T560, W540, W541 and X250 notebooks.

Suits single-slot upgrades on listed ThinkPads

Builders adding memory to a compatible T560, W540, W541 or X250 will find this module matches the required voltage, speed and pin count. It is not for laptops that need ECC or registered DIMMs, nor for systems that cannot accept DDR3L SODIMMs.

1.35 V DDR3L voltage decides fit

The 1.35 V DDR3L specification is the single figure that determines whether this module will work in a given notebook. Only systems designed for DDR3L at this voltage should use it.

How it compares

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

Price $16.99
Cheaper than about 93% 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 $4.25 per GB
Cheaper than about 83% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number1S6T31R804 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsLenovo ThinkPad T560
Lenovo ThinkPad W540
Lenovo ThinkPad W541
Lenovo ThinkPad X250

Other versions of this model

5 more in the same range

Questions about this item

How do I install this 204-pin SODIMM into my ThinkPad T560, and what step is often missed?

Power off the laptop, remove the battery if accessible, open the memory door, align the notch on the module with the slot key, press firmly until the side clips click, then replace the door and battery before booting.

What maintenance or replacement will this 4GB DDR3L module need over time?

No routine maintenance is required; keep the vents clear so the module stays cool, and only replace it if a memory diagnostic reports errors or you upgrade to a larger matched kit.

What limit appears first when this CL11 1.35V memory runs sustained workloads?

The 4GB capacity ceiling is reached before any thermal or timing limit, causing the system to swap to storage once all physical memory is allocated.

More in Model-Specific Memory Upgrades

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