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Green circuit board with black memory chips and gold edge connector

A-Tech

A-Tech 4GB DDR4 2400MHz CL17 260-Pin SODIMM Samsung M471A5143EB0-CRC Laptop RAM

SKU CH-BFAM-M15CN

4 GB DDR4 SODIMM running at 2400 MHz with CL17 latency for laptop upgrades

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • 4GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2400MHz speed delivers PC4-19200 bandwidth for responsive performance
  • CL17 latency at 1.20V balances quick access with standard power draw
  • 260-pin SODIMM form factor fits compatible laptop memory slots directly
  • Tested replacement for Samsung M471A5143EB0-CRC and matching part numbers

4GB DDR4 SODIMM for Laptops

This 4GB DDR4 260-pin SODIMM module upgrades compatible laptops, notebooks and all-in-one systems. It runs at 2400 MHz with a CAS latency of 17 and operates at the standard 1.20 V. The unbuffered, non-ECC design targets everyday computing and multitasking workloads.

Straightforward Slot Installation

Installation requires opening the memory compartment, aligning the 260-pin key with the slot, and pressing firmly until the retention clips engage. The most common issue is a loose fit caused by not seating the module fully, which prevents the system from recognising the memory.

DDR4 2400 Bandwidth Ceiling

The PC4-19200 interface caps maximum throughput at the rated 2400 MT/s, so faster DDR4 modules will downclock to this speed when mixed. Systems limited to lower DDR4 frequencies will also restrict the module to the slower supported rate.

How it compares

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

Price $29.99
Cheaper than about 74% 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 $7.50 per GB
Pricier than about 65% 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
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

How can I verify the 4GB DDR4 2400MHz module is running at CL17 after installation?

Open Task Manager or CPU-Z to confirm the memory shows 2400 MHz speed and CL17 timings at 1.20V.

What does the package contain and is any extra hardware required for a laptop upgrade?

The box includes one 4GB 260-pin DDR4 SO-DIMM module; no additional parts or tools are needed beyond a compatible laptop slot.

Which Samsung part numbers does this A-Tech module replace so I can match my existing stick?

It is a compatible equivalent for Samsung M471A5143EB0-CRC, M471A5143EB1-CRC and M471A5143SB1-CRC.

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