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Green circuit board with black memory chips, gold edge connector, 240 pins

A-Tech

A-Tech 4GB DDR3L 1600 1.35V 240-Pin Desktop RAM

SKU CH-EPWQ-DCHR6

4GB DDR3L 1600MHz 1.35V 240-pin unbuffered desktop memory module compatible with Samsung M378B5173CB0-YK0, M378B5173DB0-YK0, M378B5173EB0-YK0, M378B5173QH0-YK0 replacements

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • Tested speed1600
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity lets you run more apps simultaneously
  • DDR3L 1600MHz speed delivers responsive desktop performance
  • 35V low voltage reduces power draw and heat
  • 240-pin DIMM fits standard desktop memory slots
  • Tested replacement for Samsung M378B5173 modules ensures compatibility

4GB DDR3L Desktop Module

This 4GB DDR3L module upgrades desktop computers that accept 240-pin unbuffered memory. It operates at 1.35 volts and suits owners of systems specifying PC3L-12800 speed who need a direct replacement for Samsung M378B5173CB0-YK0, M378B5173DB0-YK0, M378B5173EB0-YK0 or M378B5173QH0-YK0 modules. Builders requiring ECC or registered DIMMs cannot use this part.

Sustained Load Behaviour

The module runs at a tested frequency of 1600 MHz under continuous workloads without raising voltage above the rated 1.35 V. Non-ECC unbuffered organisation means data moves directly to the memory controller, keeping latency stable during extended multitasking sessions. Quality-assurance testing verifies reliable operation at the specified DDR3L 1600 speed over time.

DDR3L 1.35V Voltage Key

The single specification that decides fitment is the 1.35 V DDR3L voltage; systems that only support standard 1.5 V DDR3 will not recognise this module. Matching the PC3L-12800 designation and 240-pin DIMM form factor to the motherboard memory list confirms compatibility. No other voltage or generation will work in its place.

How it compares

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

Price $18.99
Cheaper than about 89% 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 $4.75 per GB
Cheaper than about 76% 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 1600 (PC3L 12800)
Memory
Tested speed1600
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.35 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

Will this 240-pin DDR3L module fit a desktop board that specifies 1.5 V DDR3?

The module runs at 1.35 V and is backward-compatible with 1.5 V slots; it will operate at the lower voltage automatically.

Can I mix this stick with existing 1600 MHz DDR3 memory?

Yes — matching the 1600 speed and unbuffered, non-ECC design allows it to run alongside identical-spec modules.

Is this the correct replacement for Samsung part M378B5173CB0-YK0?

The product is listed as a compatible replacement for that Samsung part number and the three related variants.

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