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Green circuit board with black chips, 204-pin DDR3L SODIMM module

OWC

OWC 4GB DDR3L 1600 CL11 1.35V SODIMM Lenovo Flex 14 15 2-14 2-15

SKU CH-9E9C-EC4GF

4GB DDR3L 1600 CL11 1.35V SODIMM upgrade for Lenovo Flex 14, 15, 2-14 and 2-15 models

  • Capacity4GB
  • Type204-Pin DDR3L Non-ECC SODIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCNo
  • 4GB capacity adds multitasking headroom for Lenovo Flex models
  • DDR3L 1600 speed matches factory PC3L-12800 spec exactly
  • 35 V low-voltage design keeps power draw in check
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Single 204-pin SODIMM installs easily in supported Flex laptops

OWC 4GB DDR3L SODIMM for Lenovo Flex

This OWC module is a 4GB DDR3L 1600 CL11 1.35V SODIMM built to JEDEC and RoHS standards. It fits Lenovo Flex 14, 15, 2-14, 2-14D, 2-15 and 2-15D notebooks as a direct memory upgrade.

Owners of compatible Flex laptops needing more RAM

The 204-pin unbuffered non-ECC design works only in systems that accept DDR3L SODIMMs at this voltage and speed. Buyers with laptops requiring a different pin count, voltage or DDR generation cannot use this module.

1.35V DDR3L 1600 CL11 specification

The single 1Rx8 rank operates at PC3L-12800 with CAS latency 11. Matching this voltage, speed and timing is the deciding factor for a successful upgrade in the listed Flex models.

Highlights

  • 4GB capacity adds multitasking headroom for Lenovo Flex models
  • DDR3L 1600 speed matches factory PC3L-12800 spec exactly
  • 35 V low-voltage design keeps power draw in check
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Single 204-pin SODIMM installs easily in supported Flex laptops

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 Flex 14
Lenovo Flex 15
Lenovo Flex 2-14
Lenovo Flex 2-14D
Lenovo Flex 2-15

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the 204-pin SODIMM in my Lenovo Flex 2-14 and what step is often missed?

Power off, unplug, remove the battery, open the memory door, align the notch on the 204-pin DDR3L module with the slot key, press firmly until both side clips click, then reassemble; the step often missed is fully seating the module so both clips engage.

What maintenance or replacement will this 4GB DDR3L 1600 module need later?

No scheduled maintenance is required; keep the laptop vents clear of dust to avoid overheating the 1.35V memory, and replace the module only if a memory test reports errors or capacity becomes insufficient.

What limit appears first when this CL11 1Rx8 SODIMM runs sustained workloads?

The single 4GB capacity and CL11 latency at 1600 MT/s will bottleneck multitasking and bandwidth before the 1.35V DDR3L chips reach thermal limits.

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