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Green 260-pin DDR4 SO-DIMM module with black chips

A-Tech

A-Tech 4GB DDR4 2133MHz CL15 260-Pin SODIMM Kingston ACR21D4S15HAG/4G KCP421SS8/4 KVR21S15S8/4 Laptop RAM

SKU CH-K0XK-1RP7N

A 4GB DDR4 2133MHz CL15 SODIMM laptop memory module using major-brand chips at 1.2V for AMD and Intel systems

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Recommended forAMD & Intel Compatible
  • Boosts multitasking with a 4 GB DDR4 2133 MHz module
  • Fits laptops using the 260-pin SO-DIMM form factor
  • Runs at the standard 1.20 V DDR4 voltage
  • Tested for reliable CL15 latency performance
  • Direct replacement for Kingston ACR21D4S15HAG/4G KCP421SS8/4 KVR21S15S8/4

4GB DDR4 2133MHz CL15 SODIMM

This 4GB DDR4 module runs at 2133MHz with CL15 timing and 1.20V operation. It uses a 260-pin SO-DIMM form factor built with major brand chips. The unbuffered, non-ECC design targets laptop, notebook and all-in-one systems.

Who this suits and who should look elsewhere

The single 4GB stick suits owners of compatible Kingston ACR21D4S15HAG/4G, KCP421SS8/4 or KVR21S15S8/4 laptops needing a direct replacement or a modest capacity increase. Buyers who want more storage than a single 4GB module provides should look at higher-capacity kits or multi-module configurations.

The spec that decides fit

The 260-pin DDR4 SO-DIMM interface at 2133MHz CL15 is the single specification that determines whether this module will work in your system. Verify your laptop supports DDR4 2133 (PC4-17000) unbuffered non-ECC memory before purchase.

How it compares

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

Price $32.99
Cheaper than about 70% 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 $8.25 per GB
Pricier than about 71% 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 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

Will this 260-Pin DDR4 SODIMM run at its rated 2133 MHz alongside existing DDR4 modules in the same laptop?

The module operates at 1.20 V with CL15 timing. When mixed with faster DDR4, the system typically downclocks all memory to the slowest module's 2133 MHz speed.

How can I confirm the 4 GB module is detected at 2133 MHz CL15 after installation?

Open Task Manager or BIOS and check that the installed memory shows 4 GB, 2133 MHz speed, and the 260-Pin DDR4 form factor.

Does the single 260-Pin DDR4 SODIMM arrive alone, or are tools or extra parts included?

Only the 4 GB memory module is supplied. No screwdrivers, thermal pads, or additional components are provided.

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