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Green printed circuit board with gold edge contacts and black memory chips

OWC

OWC 4GB DDR3L 1600 CL11 1Rx8 1.35V 204-pin SODIMM memory upgrade

SKU CH-HG13-7Q5F7

A 4 GB DDR3L SODIMM running at 1600 MHz with CL11 timing for compatible Lenovo laptops

  • Capacity4GB
  • Type204-Pin DDR3L Non-ECC SODIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCNo
  • 4GB DDR3L 1600 CL11 module boosts multitasking on listed Lenovo models
  • Single 4GB stick at 1.35V DDR3L 1600 PC3L-12800 CL11 1Rx8
  • JEDEC-standard DDR3L SODIMM ensures warranty-safe compatibility
  • Unbuffered non-ECC DDR3L 1600 design enables straightforward DIY installation
  • Tested to meet or exceed OEM specifications for reliable operation

4GB DDR3L SODIMM for Lenovo notebooks

This 4GB module runs at 1600 MT/s with CL11 latency and 1.35V operation. It uses a 204-pin unbuffered non-ECC SODIMM form factor. The single-rank 1Rx8 design meets JEDEC and RoHS standards.

Compatible Lenovo models and upgrade limits

The module is validated for Lenovo M5400, S200z, S405z, S41-70, S50-30, U31-70 and U41-70 systems. It suits owners of these models seeking a straightforward capacity increase. Buyers with other laptops or desktops cannot use this part.

DDR3L 1600 PC3L-12800 specification

The decisive spec is the DDR3L 1600 (PC3L-12800) rating at 1.35V with CL11 timing. Your system must accept this exact speed, voltage and latency combination. If the platform requires a different voltage or speed grade, this module will not function correctly.

Highlights

  • 4GB DDR3L 1600 CL11 module boosts multitasking on listed Lenovo models
  • Single 4GB stick at 1.35V DDR3L 1600 PC3L-12800 CL11 1Rx8
  • JEDEC-standard DDR3L SODIMM ensures warranty-safe compatibility
  • Unbuffered non-ECC DDR3L 1600 design enables straightforward DIY installation
  • Tested to meet or exceed OEM specifications for reliable operation

Specifications

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 M5400
Lenovo S200z
Lenovo S405z
Lenovo S41-70
Lenovo S50-30

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Questions about this item

Does the module arrive as a single stick or do I need to buy a second one for dual-channel?

The upgrade consists of one 4GB DDR3L 1600 SODIMM. If your laptop has two slots and you want dual-channel bandwidth, add a second identical module.

My Lenovo S41-70 takes DDR3L 1600 — is this the correct speed and voltage?

Yes. The module runs at DDR3L 1600 (PC3L-12800) with 1.35V and CL11 timing, matching the factory spec for the S41-70 and the other listed models.

Will the CL11 latency feel slower than the original memory in an M5400?

CL11 at 1600 MT/s is the standard JEDEC timing for DDR3L 1600, so real-world responsiveness will be the same as the OEM sticks.

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