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Green circuit board with gold edge connector and black memory chips

OWC

OWC 4GB DDR3L 1600 CL11 1.35V SODIMM for ThinkPad P50s S431 S440 S531 S540 T440 memory upgrade

SKU CH-K9HH-6DAXQ

4GB DDR3L 1600 SODIMM upgrades compatible ThinkPad P50s, S431, S440, S531, S540 and T440 laptops

  • Capacity4GB
  • Type204-Pin DDR3L Non-ECC SODIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCNo
  • Boosts multitasking with 4GB DDR3L 1600 CL11 module
  • Low 1.35V DDR3L cuts power draw and heat
  • JEDEC-standard build ensures warranty-safe upgrade
  • Fits ThinkPad P50s, S431, S440, S531, S540, T440
  • Simple 204-pin SODIMM install requires no tools

4GB DDR3L SODIMM for ThinkPad upgrades

This 4GB DDR3L module runs at 1600 MT/s with CL11 latency and 1.35V operation. The 204-pin unbuffered SODIMM carries JEDEC-standard PC3L-12800 timing and a single-rank 1Rx8 organisation. It is built for direct installation in supported Lenovo ThinkPad notebooks.

Suits ThinkPad P50s S431 S440 S531 S540 T440 owners

The module fits the listed ThinkPad models that accept DDR3L SODIMMs. Builders needing ECC error correction or registered buffering should look elsewhere. Systems requiring higher density per slot or a different DDR generation will not accept this part.

DDR3L 1600 CL11 1.35V 204-pin SODIMM

The DDR3L 1600 specification with 1.35V voltage and 204-pin SODIMM form factor determines whether the module seats and runs in the target notebook. Verify the platform requires PC3L-12800 non-ECC memory before purchase.

Puntos fuertes

  • Boosts multitasking with 4GB DDR3L 1600 CL11 module
  • Low 1.35V DDR3L cuts power draw and heat
  • JEDEC-standard build ensures warranty-safe upgrade
  • Fits ThinkPad P50s, S431, S440, S531, S540, T440
  • Simple 204-pin SODIMM install requires no tools

Especificaciones

BrandOWC
Part Number1S6T31R804GB
Capacity4GB
Type204-Pin DDR3L Non-ECC SODIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemLenovo ThinkPad P50s
Lenovo ThinkPad S431
Lenovo ThinkPad S440
Lenovo ThinkPad S531
Lenovo ThinkPad S540

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Preguntas sobre este artículo

Should I choose the 4 GB module or add a second one for dual-channel?

This listing is a single 4 GB DDR3L 1600 SODIMM. If your ThinkPad has two slots, adding a matching module enables dual-channel bandwidth.

What does the DDR3L 1600 rating deliver in daily use?

The PC3L-12800 speed and CL11 latency give a noticeable lift in multitasking and large-file handling on supported ThinkPad models.

Will the 204-pin DDR3L 1.35 V SODIMM work in my T440?

Yes, the module matches the T440's DDR3L 1600 specification and fits the 204-pin SODIMM slot at the standard 1.35 V.

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