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Green rectangular circuit board with gold contacts and black memory chips

A-Tech

A-Tech 4GB DDR4 2133MHz CL15 Desktop RAM

SKU CH-RFZ0-MTV68

4GB DDR4 2133MHz CL15 desktop DIMM with 288 pins, 1.20V operation and major-brand chips for AMD and Intel systems

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chips
  • CAS latencyCL15
  • Tested speed2133
  • Rated voltage1.2 V
  • Boosts multitasking with 4GB DDR4 capacity
  • Runs at 2133MHz PC4-17000 speed for responsive loads
  • CL15 latency and 1.20V standard voltage ensure stable operation
  • 288-pin unbuffered DIMM fits standard desktop slots
  • Tested compatible replacement for IBM-Lenovo 4X70G88312 and 4X70K09920

Desktop Memory Upgrade

This 4GB DDR4 module runs at 2133MHz with a CL15 latency and operates at the standard 1.20V. It is an unbuffered, non-ECC DIMM built with major brand chips and intended for desktop systems that support this specification.

Simple DIMM Installation

The 288-pin DIMM fits into any compatible desktop slot and requires no special tools or configuration beyond seating the module firmly until the retention clips click. The most common issue is a mismatch between the system's supported speed or maximum capacity and this module's 2133MHz rating, so verifying the motherboard or OEM documentation first avoids a non-posting system.

DDR4 Platform Limits

DDR4 memory tops out at the standard 1.20V and the JEDEC-defined frequencies for this generation, meaning this 2133MHz module will not exceed that ceiling without manual overclocking which the platform may not allow. The 4GB capacity also restricts multitasking headroom on modern operating systems, so the practical limit is often the total number of slots the board provides rather than the memory standard itself.

How it compares

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

Price $29.99
Cheaper than about 79% 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 $7.50 per GB
Pricier than about 55% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity4 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chips
Memory
CAS latencyCL15
Tested speed2133
ECC supportNo
Buffer typeUnbuffered
Power
Rated voltage1.2 V
Compatibility
Recommended forAMD & Intel Compatible

Questions about this item

How do I confirm the 2133MHz CL15 module is running at its rated speed after installation?

Open Task Manager or CPU-Z and verify the memory tab shows 2133 MT/s with CAS latency 15 at 1.20 V.

What ships in the box and what must I source separately?

One 4 GB DDR4 288-pin UDIMM is included; no cables, brackets or additional modules are supplied.

Should I choose the 4X70G88312 or 4X70K09920 compatible version for my Lenovo desktop?

Both part numbers reference the same 4 GB DDR4 2133 CL15 specification; select whichever matches your service manual.

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