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Green circuit board with black memory chips and gold edge contacts

AGI

AGI UD138 16GB DDR4 UDIMM 2666MHz CL19 1.2V 288-pin desktop RAM

SKU CH-WY0M-TYPYR

16 GB DDR4 UDIMM running at 2666 MHz with CL19 latency and 1.2 V operation

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Product type288-Pin PC RAM

Capacity 16GB

Type 288-Pin DDR4 SDRAM

Speed DDR4 2666 (PC4 21300)

  • 16 GB capacity handles demanding workloads
  • DDR4 2666 MHz speed delivers responsive multitasking
  • CL19 latency supports smooth system operation
  • 2 V operation reduces power draw by 20 % versus DDR3
  • 3 mm low profile fits compact builds

UD138 16 GB DDR4 module

This is a 16 GB DDR4 UDIMM built for desktop systems that need a straightforward memory upgrade. It targets content creators, gamers and everyday users who want reliable capacity without extra complexity. The unbuffered non-ECC design fits standard consumer motherboards.

2666 MHz CL19 speed rating

The module runs at DDR4 2666 (PC4 21300) with a CAS latency of 19 at 1.2 V. That single speed and timing combination determines whether the stick matches your platform's supported data rate and latency window.

16 GB capacity with 31.3 mm height

Sixteen gigabytes handles typical multitasking, mainstream gaming and creative workloads comfortably. The low 31.3 mm profile clears most CPU coolers, while the 20 % power saving versus DDR3 reduces thermal load.

How it compares

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

Price $130.99
Pricier than about 58% of the 3,647 comparable items (median $90.99).
Total capacity 16 GB
Typical for this category: the median of 3,251 items is 16 GB.
Price per GB $8.19 per GB
Pricier than about 60% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameAGI
Product lineUD138
Model nameUD138
Part numberAGI266616UD138
Total capacity16 GB
Product type288-Pin PC RAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Will this 16 GB DDR4 module fit my motherboard's 288-pin slots?

The UD138 is a standard 288-pin unbuffered non-ECC UDIMM, so it installs in any desktop board with DDR4 slots.

What does CL19 at 2666 MHz mean for everyday use?

CL19 is the CAS latency cycle count; at 2666 MHz it delivers typical desktop responsiveness for office work, browsing and light gaming.

Do I need to change any voltage settings in BIOS?

The module runs at the JEDEC-standard 1.2 V, so most boards will configure it automatically without manual adjustment.

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