8GB 1Rx8 PC4-2666V DDR4-2666 1.2V CL19 Non-ECC 288-Pin UDIMM Desktop RAM Memory Module

8GB DDR4 desktop memory module built for systems that require standard 288-pin non-ECC unbuffered UDIMM memory. This 1Rx8 module is a reliable replacement for desktops, workstations, all-in-ones, and motherboards that support DDR4-2666 desktop memory, and it can also operate at lower speeds when limited by the host platform.

Technical Specifications

• Capacity: 8GB
• Memory Type: DDR4 SDRAM
• Form Factor: UDIMM
• Pin Count: 288-Pin
• Rank: 1Rx8
• Speed: DDR4-2666
• PC Rating: PC4-2666V / PC4-21300
• ECC Type: Non-ECC
• Buffered / Registered: Unbuffered
• Voltage: 1.2V
• CAS Latency: CL19
• Module Type: Desktop Memory Module

Interchangeable / Replacement Part Numbers

HMA81GU6JJR8N-VK, HMA81GU6CJR8N-VK, 01AG827

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

✔️ Lenovo ThinkCentre: M70a, M70c, M70s, M70t, M75s Gen 2, M75t Gen 2, M80s, M80t, M90a, M90a Gen 2, M90s, M90t, M720 Tower, M720 SFF, M720e SFF, M920 Tower, M920 SFF
✔️ Lenovo ThinkStation: P330 SFF, P330 SFF Gen 2, P330 Tower, P330 Tower Gen 2, P340 Tiny, P340 SFF, P340 Tower
✔️ HP Business Desktop / All-in-One / Small Form Factor: 205 G4 22, 205 Pro G4 22, 268 Pro G1 Microtower, 290 G1 SFF, ProDesk 480 G5 Microtower, Slimline 290 series
✔️ HP Pavilion / Gaming Desktop: Pavilion 590 series, Pavilion 595 series, Pavilion 690 series, Pavilion 790 series, TG01 series
✔️ HP OMEN Desktop: OMEN 880 series, OMEN Obelisk 875 series, OMEN 25L GT11 series
✔️ Acer Veriton: M6660G, M200-B360
✔️ Fujitsu ESPRIMO / CELSIUS: ESPRIMO P758, ESPRIMO D958, ESPRIMO P958/power, CELSIUS W580
✔️ ASUS Motherboards / Workstation Boards: ROG STRIX X570-E GAMING, ROG STRIX X570-I GAMING, TUF GAMING X570-PLUS, ROG CROSSHAIR VIII HERO, ROG CROSSHAIR VIII FORMULA, P11C-I, WS C246 PRO
✔️ MSI Motherboards: X570-A PRO, MPG X570 GAMING PLUS, B360 GAMING PRO CARBON, B360M BAZOOKA, B360M MORTAR, H370 GAMING PRO CARBON, X299 PRO, PRO H610M-S WIFI
✔️ Desktop Platforms: Desktop PCs, workstations, all-in-ones, and motherboards that require 288-pin DDR4 non-ECC unbuffered UDIMM memory and support 8GB 1Rx8 DDR4-2666 modules

☑️ Key Features

☑️ 8GB DDR4-2666 desktop memory module for systems using standard 288-pin UDIMM slots
☑️ Non-ECC unbuffered design for compatible desktop and workstation platforms
☑️ 1Rx8 single-rank configuration
☑️ 1.2V low-voltage DDR4 operation
☑️ Compatible with systems that support DDR4-2666 and many systems that downclock memory to lower supported speeds
☑️ Good replacement option for business desktops, workstations, and motherboard upgrades that require non-ECC desktop RAM

⚙️ Fit Notes

• This module is non-ECC desktop UDIMM memory and is not compatible with ECC RDIMM, ECC LRDIMM, or laptop SO-DIMM systems.
• Always match memory type, ECC type, buffered / registered type, voltage, speed class, and form factor before ordering.
• Systems limited to 2400MT/s or 2133MT/s may still use this module at the lower supported platform speed if the motherboard and BIOS support 8GB non-ECC UDIMM operation.