We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with gold edge connector and black memory chips

OWC

OWC 4GB DDR3L 1600 CL11 1Rx8 204-pin 1.35V SODIMM for Dell Latitude E6540 E7240 E7440 E7450

SKU CH-4KPJ-D6A0R

4GB DDR3L 1600 CL11 204-pin SODIMM upgrade for Dell Latitude E6540, E7240, E7440 and E7450

  • Capacity4GB
  • Type204-Pin DDR3L Non-ECC SODIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCNo
  • 4GB DDR3L 1600 module boosts multitasking on compatible Dell Latitude models
  • JEDEC-standard 1.35V CL11 SODIMM ensures warranty-safe upgrade without compatibility risk
  • Single 4GB 1Rx8 204-pin stick installs easily in E6540 E7240 E7440 E7450
  • PC3L-12800 speed rating delivers responsive performance for everyday workloads
  • OWC-tested DDR3L memory provides reliable operation backed by lifetime warranty

4GB DDR3L SODIMM for Dell Latitude

This 4GB DDR3L 1600 CL11 SODIMM module is built for Dell Latitude E6540, E7240, E7440 and E7450 notebooks. It delivers a straightforward capacity increase for users who need more headroom for everyday multitasking. The single-rank 1Rx8 design operates at 1.35V without ECC or a heat spreader.

Check your laptop before ordering

Confirm your model is one of the four listed Latitude systems and that a free 204-pin SODIMM slot is available. The board must accept DDR3L 1600 (PC3L-12800) at 1.35V with CL11 timing and unbuffered non-ECC operation. Mixing voltages, speeds or ECC types can prevent the system from posting.

Fits a standard memory upgrade

The module slides into the existing SODIMM socket and requires no extra cables, brackets or cooling. It draws power directly from the slot and leaves all other expansion ports untouched. Adding this stick frees up the remaining slot for a matching module if you want to run a dual-channel pair later.

Highlights

  • 4GB DDR3L 1600 module boosts multitasking on compatible Dell Latitude models
  • JEDEC-standard 1.35V CL11 SODIMM ensures warranty-safe upgrade without compatibility risk
  • Single 4GB 1Rx8 204-pin stick installs easily in E6540 E7240 E7440 E7450
  • PC3L-12800 speed rating delivers responsive performance for everyday workloads
  • OWC-tested DDR3L memory provides reliable operation backed by lifetime warranty

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 SystemDell Latitude E6540
Dell Latitude E7240
Dell Latitude E7440
Dell Latitude E7450

Other versions of this model

5 more in the same range

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

Questions about this item

Does the OWC 4GB DDR3L 1600 module ship as a single stick or a kit, and are any tools required for installation?

The product consists of one 4GB DDR3L 1600 SODIMM. Installation is a DIY task that typically needs only a small screwdriver to open the laptop's memory compartment.

My Dell Latitude E7440 has two slots — should I buy one 4GB module or two for dual-channel performance?

For dual-channel operation on the E7440, purchase two identical 4GB modules. OWC recommends matching capacity, speed and manufacturer for optimal performance.

The listing shows PC3L-12800 and CL11 — what real-world speed will I see once the module is seated in an E6540?

The module runs at DDR3L 1600 with CL11 latency at 1.35V. The E6540's memory controller will operate it at that rated speed automatically.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.