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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

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 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.

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

Other versions of this model

5 more in the same range

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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