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

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3L 1600MHz SODIMM for Lenovo ThinkPad X140E 20BLxxx 20BMxxx memory upgrade

SKU CH-STYE-8FFNB

4GB DDR3L 1600MHz SODIMM module upgrades Lenovo ThinkPad X140E laptops with CL11 timing at 1.35V

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • Boosts multitasking with 4GB DDR3L 1600MHz capacity
  • Low 1.35V DDR3L voltage cuts power draw
  • CL11 timing delivers responsive system performance
  • 204-pin SODIMM fits ThinkPad X140E 20BLxxx/20BMxxx
  • Single 1Rx8 module enables easy 8GB max upgrade

Compatible 4GB DDR3L SODIMM for Lenovo ThinkPad

This 4GB DDR3L module runs at 1600MHz with CL11 timing at 1.35V. It uses a 204-pin SO-DIMM form factor and is unbuffered, non-ECC memory. The single stick is built with major-brand chips and carries a limited lifetime warranty from Computer Memory Solutions.

Ideal for owners of ThinkPad X140E 20BLxxx

The kit suits users upgrading one of the two available slots in these specific Lenovo laptops. Buyers needing more than 4GB per module or requiring ECC error correction should look at other memory options. Systems that do not accept 204-pin DDR3L SODIMMs cannot use this part.

Maximum supported capacity is 8GB across two sockets

The laptop platform supports up to 8GB total memory using both SODIMM slots. This single 4GB stick fills one slot and leaves the second free for a matching upgrade. Installing a module larger than 4GB would exceed the documented per-slot limit.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 91% 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 $5.00 per GB
Cheaper than about 77% 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 Thinkpad X140E 20Blxxx; 20Bmxxx
In the box
Included items1 Memory RAM Stick

Questions about this item

What does the 1600 MHz rating mean once the module is installed in a ThinkPad X140E?

The module will run at 1600 MHz with CL11 timing at 1.35 V, delivering PC3L 12800 bandwidth in the X140E's memory slots.

How does the DDR3L 1.35 V specification affect compatibility with the X140E?

DDR3L at 1.35 V is the native voltage for the X140E; the module is unbuffered, non-ECC, 204-pin SODIMM and matches the system's electrical requirements.

Will this 204-pin SODIMM physically fit the X140E's memory sockets?

Yes, the 204-pin SODIMM form factor matches the two SO-DIMM slots in the ThinkPad X140E, and the module height is standard without a heat spreader.

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