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 and gold edge connectors

A-Tech

A-Tech 4GB DDR3L 1866 DIMM 240-Pin 1.35V

SKU CH-KMWS-1YCW0

4GB DDR3L 1866 desktop DIMM, 240-pin 1.35V unbuffered module for AMD and Intel systems

  • Total capacity4 GB
  • Rated speedDDR3L 1866 (PC3L 14900)
  • Tested speed1866
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity adds multitasking headroom for everyday desktop workloads
  • DDR3L 1866 speed rated at PC3L-14900 for responsive data throughput
  • Low 1.35V operation reduces power draw and heat in compatible systems
  • 240-pin DIMM form factor fits standard desktop memory slots
  • Tested replacement for Micron MT8KTF51264AZ-1G9 and MT8KTF51264AZ-1G9P1 part numbers

4GB DDR3L desktop module

This A-Tech module adds four gigabytes of DDR3L memory to a desktop system. It runs at 1866 MHz with a PC3L-14900 rating and operates at 1.35 V. The unbuffered, non-ECC design suits standard consumer motherboards.

Steady throughput at rated speed

The module maintains its 1866 MHz frequency during extended workloads rather than throttling after a short burst. Low-voltage operation keeps power draw modest while the tested frequency stays consistent across sustained read and write cycles.

240-pin DIMM with lifetime backing

A 240-pin gold-edge connector fits the standard DDR3 DIMM slot without adapters. Each stick passes A-Tech quality-assurance testing and ships with a lifetime warranty plus US-based technical support. Verify your board's DDR3L compatibility before ordering.

How it compares

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

Price $19.99
Cheaper than about 88% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $5.00 per GB
Cheaper than about 72% of the 3,251 comparable items (median $6.75 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
Total capacity4 GB
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Memory
Tested speed1866
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.35 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

Will this 240-pin module fit my desktop motherboard?

It fits any desktop board with a DDR3 DIMM slot that accepts 1.35 V unbuffered memory. Check your manual for supported speeds and maximum capacity per slot.

Can I mix this stick with my existing DDR3 1866 RAM?

Yes, if the other modules are also 1.35 V non-ECC unbuffered DDR3. The system will run all sticks at the lowest common speed and timing.

Is this the correct replacement for Micron MT8KTF51264AZ-1G9?

The module matches the Micron part on capacity, speed, voltage, pin count and unbuffered non-ECC design, making it a direct replacement.

More in Desktop RAM

Similar items