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Green circuit board SODIMM module with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3L 1600MHz SODIMM ThinkPad T440 memory upgrade

SKU CH-KED5-J0SPP

4GB DDR3L 1600 MHz SODIMM module for Lenovo ThinkPad T440 ultrabooks, CL11 timing at 1.35 V

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • Designed for Lenovo ThinkPad T440 ultrabook
  • 4GB DDR3L 1600MHz SODIMM module
  • Low 1.35V voltage reduces power draw
  • CL11 11-11-11 timings for responsive operation
  • Unbuffered non-ECC 204-pin single-rank design

System-specific SODIMM for ThinkPad T440

This 4 GB DDR3L SODIMM is built for the Lenovo ThinkPad T440 with a Core i7 processor. It fits the single 204-pin slot in that ultrabook and runs at 1.35 V. The module is unbuffered, non-ECC and single-rank, matching the factory specification for a direct drop-in upgrade.

Guaranteed compatibility replaces guesswork

Computer Memory Solutions validates each stick against the T440 (Core i7) part numbers 20B6xxx and 20B7xxx so the memory posts without BIOS errors. The package contains one 4 GB stick, removing the risk of mismatched pairs in a single-slot system. Major-brand chips are used throughout to avoid the instability that generic ICs can introduce.

4 GB adds headroom for everyday multitasking

At DDR3L 1600 (PC3L 12800) with CL11 timing the module delivers the bandwidth the platform expects for web browsing, office suites and light creative work. The single slot limits total capacity to 12 GB, so this stick leaves room for one more 8 GB module if the workload grows. Buyers needing 16 GB or dual-channel bandwidth cannot reach those targets with this chassis.

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).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800SOSRL
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsLenovo ThinkPad T440 (Core i7) Ultrabook
In the box
Included items1 Memory RAM Stick

Questions about this item

Will the CL11 timing on this DDR3L SODIMM need adjustment when I add it to my ThinkPad T440?

The module runs at standard CL11 11-11-11 timing and is guaranteed compatible with the ThinkPad T440, so no manual timing changes are required.

What capacity ceiling will I hit first if I keep upgrading this T440?

The system supports a maximum of 12 GB across its single socket, so adding this 4 GB stick leaves 8 GB of headroom before you reach the platform limit.

How much heat or power will this 1.35 V DDR3L stick add during all-day use?

Operating at 1.35 V without a heat spreader, the module draws minimal power and generates little extra heat inside the ultrabook chassis.

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