2-power 2P-AD4U2666W4G19 - 4 GB - 1 x 4 GB - DDR4 - 2666 MHz

When a desktop workstation in a busy office starts lagging during multitasking, upgrading to a reliable DDR4 module like this 2-POWER 4GB stick can restore smooth performance. It is a single unbuffered DIMM running at 2666 MHz, ideal for replacing failed memory or adding capacity to systems that support DDR4-2666. With a CAS latency of 19 and standard 1.2 V operation, it follows JEDEC specifications for broad compatibility with Intel and AMD platforms.

Key specifications

• Capacity: 4 GB (1 x 4 GB module)
• Memory type: DDR4 UDIMM (288-pin, non-ECC, unbuffered)
• Speed: 2666 MHz (PC4-21300)
• CAS latency: CL19
• Voltage: 1.2 V
• Rank: Single rank (1Rx8)
• Form factor: Standard desktop DIMM, no heat spreader
• JEDEC compliant: Yes

Why choose it

This module delivers dependable performance for everyday computing, office applications, and light content creation. Its JEDEC-standard profile ensures plug-and-play installation in most desktops without manual BIOS tuning. The low 1.2 V voltage helps reduce power consumption and heat compared to older DDR3 memory, contributing to system stability. As a single-rank module, it is often compatible with motherboards that have limitations on dual-rank configurations.

Ideal use cases

• Upgrading an office desktop for smoother multitasking and web browsing
• Replacing a faulty 4GB DDR4 module in a business PC
• Building or maintaining budget-friendly home or small office computers
• Adding memory to systems used for point-of-sale, kiosks, or digital signage

Good to know

Before purchasing, verify that your motherboard supports DDR4 2666 MHz UDIMM modules and has an available 288-pin slot. This module does not include ECC or buffering, so it is intended for consumer and business desktops rather than servers. It operates at the standard 1.2 V, but some systems may run it at lower speeds if the CPU or chipset limits memory frequency. For best results, pair with an identical module when using dual-channel configurations.