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 black memory chips, gold edge connector, thin rectangular SODIMM shape

A-Tech

A-Tech 4GB DDR3L 1866MHz CL13 1.35V SODIMM laptop RAM

SKU CH-RGS4-T5VVD

4GB DDR3L SODIMM runs at 1866MHz with CL13 latency and 1.35V low voltage for laptop upgrades

  • Total capacity4 GB
  • Rated speedDDR3L 1866 (PC3L 14900)
  • CAS latencyCL13
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Recommended forCompatible Replacement for Micron MT8KTF51264 Hz-1G9E1, MT8K
  • Boosts system responsiveness with 4GB DDR3L 1866MHz CL13 module
  • Low 1.35V DDR3L voltage reduces power draw and heat
  • 204-pin SO-DIMM form factor fits standard laptop memory slots
  • Non-ECC unbuffered design ensures broad compatibility with consumer notebooks
  • Direct replacement for Micron MT8KTF51264HZ-1G9E1 and MT8KTF51264HZ-1G9E5

Compatible 4GB DDR3L SODIMM Upgrade

This module replaces Micron MT8KTF51264HZ-1G9E1 and MT8KTF51264HZ-1G9E5 parts in laptops, notebooks and all-in-one systems. It delivers 4GB of DDR3L 1866MHz memory with CL13 latency for owners needing a direct, tested replacement. Buyers who require higher capacities or dual-channel kits should look elsewhere.

Low-Voltage 1.35V Operation

The DDR3L specification runs at 1.35V, reducing power draw and heat compared with standard DDR3 1.5V modules. Unbuffered, non-ECC design keeps the electrical load light on the memory controller during typical workloads. No heat spreader is fitted, so airflow in the chassis handles cooling silently.

Lifetime Warranty and US-Based Support

Every unit undergoes quality assurance testing before shipping to confirm reliable operation at the rated PC3L 14900 speed. A lifetime warranty covers the module for as long as you own it, and complimentary United States technical support is available before, during and after installation. No additional software or accessories are bundled.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 91% of the 2,079 comparable items (median $70.99).
Total capacity 4 GB
Lower than about 80% of the 1,886 comparable items (median 16 GB).
Price per GB $4.00 per GB
Cheaper than about 82% of the 1,886 comparable items (median $5.94 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 nameA-Tech
Product lineCompatible Replacement for Micron
Model nameMT8KTF51264 Hz-1G9E1, MT8KTF51264 Hz-1G9E5
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Memory
CAS latencyCL13
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Recommended forCompatible Replacement for Micron MT8KTF51264 Hz-1G9E1, MT8KTF51264 Hz-1G9E5

Questions about this item

How do I install this 204-pin DDR3L SODIMM and what step do people often miss?

Align the notch on the module with the slot key, insert at an angle, then press down firmly until both side clips click — many forget to verify both clips are fully latched.

What maintenance or replacement will this 4GB DDR3L 1866MHz CL13 module need later?

No scheduled maintenance is required; if errors appear, reseat the module or test with a memory diagnostic — replacement is only needed if the module fails.

What limit appears first on this 1.35V DDR3L SODIMM under sustained heavy workloads?

The 4GB capacity ceiling is reached before thermal or voltage limits, causing swapping and reduced responsiveness during prolonged multitasking.

More in Laptop RAM

Similar items