8GB DDR4 desktop memory module for systems requiring a full-size 288-pin, non-ECC, unbuffered UDIMM. The single-rank x8 organization, JEDEC DDR4-2666 CL19 timing, and 1.2V operation make it a suitable replacement for the verified module models and OEM service references below.
Module label, PCB color, chip markings, production revision, and country of origin may vary according to available inventory. Every supplied module will match the stated 8GB 1Rx8 PC4-2666V non-ECC UDIMM specifications.
M378A1K43CB2-CTD, MTA8ATF1G64AZ-2G6E1, CT8G4DFRA266.8FE1, M378A1K43BB2-CTD, M378A1K43BB2-CTD00, M378A1K43CB2-CTD, M378A1K43CB2-CTD00, M378A1K43DB2-CTD, HMA81GU6CJR8N-VK, HMA81GU6CJR8N-VKN0, HMA81GU6DJR8N-VK, HMA81GU6DJR8N-VKN0, HMA81GU6JJR8N-VK, HMA81GU6JJR8N-VKN0, MTA8ATF1G64AZ-2G6, MTA8ATF1G64AZ-2G6B1, MTA8ATF1G64AZ-2G6D1, MTA8ATF1G64AZ-2G6E1, MTA8ATF1G64AZ-2G6H1, MTA8ATF1G64AZ-2G6J1, CT8G4DFS8266, CT8G4DFS8266.8FB1, CT8G4DFS8266.8FD1, CT8G4DFS8266.8FE1, CT8G4DFS8266.8FH1, CT8G4DFS8266.8FJ1, CT8G4DFS8266.M8FD, CT8G4DFRA266.8FE1, CT8G4DFRA266.C8FE, CT8G4DFRA266.M8FR, RMUA5110KC78HAF-2666, RMUA5110MD78HAF-2666, RMUA5110ME78HAF-2666, RMUA5110MH78HAF-2666, NT8GA64D88BX3F-HR, NT8GA64D88CX3F-HR, TS1GLH64V6B, TS1GLH64V6B-G, AD4U26668G19-SGN, AD4U266638G19-B, TC48G26S816
OEM, FRU, spare, service, and option references:
01AG815, 01AG821, 01AG827, 01AG834, 01AG839, 01AG845, 01AG857, 01AG860, 01AG872, 4X70R38787, 4X70Z46579, 4ZC7A08701, 5M30V06929, 5M30Z71663, 8SSM30N76561, SNPY7N41C/8G, AA101752, AA103685, Y7N41, 0Y7N41, 370-ADZL, 3PL81AA, 3PL81AT, 3TK87AA, 3TK87AT, 933276-001, 932819-371, 932819-373, 932819-671, 932819-672, 932819-971, L04429-501, L26006-001, 7EH55AA, KN.8GB04.029, KN.8GB04.Q05, KN.8GB0B.061, KN.8GB0C.015, KN.8GB0G.059, S26361-F4101-L4, S26361-F4101-E4, S26361-F4101-B4, 10602359748
Common searchable specification markings:
PC4-2666V, PC4-2666V-U, PC4-21300, PC4-21300V-U, PC4-21333, DDR4-2666, DDR4-2666U, 2666U, UA2-11
These are specification markings rather than unique orderable part numbers.
Please note that the following list is not exhaustive. Compatibility requires a full-size 288-pin DDR4 slot supporting 8GB non-ECC unbuffered UDIMMs. Verify the exact system form factor, motherboard documentation, processor memory limits, BIOS support, and currently installed module before ordering.
✔️ OptiPlex Tower and SFF: 3060 Tower, 3060 SFF, 5060 Tower, 5060 SFF, 7060 Tower, 7060 SFF, 3070 Tower, 3070 SFF, 5070 Tower, 5070 SFF, 7070 Tower, 7070 SFF
✔️ Precision Workstations: 3430 SFF, 3431 SFF, 3630 Tower, 3630 XL Tower
✔️ Inspiron / XPS / Vostro / Aurora: Inspiron 3670, Inspiron Gaming 5680, Vostro 3670, XPS 8930, XPS 8940, Aurora R7
✔️ ThinkCentre: M720 Tower, M720 SFF, M720e SFF, M920 Tower, M920 SFF, M70c, M70s, M70t, M80s, M80t, M90s, M90t
✔️ ThinkStation: P330 Tower, P330 Tower Gen 2, P330 SFF, P330 SFF Gen 2
✔️ Business Desktops: 280 G4 SFF, 280 G5 SFF, 285 G3 Microtower, 290 G3 Microtower, 290 G4 Microtower, ProDesk 400 G5 Microtower, ProDesk 400 G5 SFF, ProDesk 405 G4 SFF, ProDesk 405 G6 SFF, ProDesk 600 G4 Microtower, ProDesk 600 G4 SFF, EliteDesk 705 G4 Microtower, EliteDesk 705 G4 SFF, EliteDesk 800 G4 Tower, EliteDesk 800 G4 SFF
✔️ Z Workstations: Z2 G4 Tower, Z2 G4 SFF, Z2 G5 Tower
✔️ Pavilion: 590 series, 595 series
✔️ Pavilion Gaming: 690 series, 790 series, TG01 series configurations equipped with full-size 288-pin DDR4 UDIMM slots
✔️ OMEN: 880 series, Obelisk 875 series, 25L GT11 series
✔️ Veriton: M4660G, M6660G, X4660G, X6660G, X4240G
✔️ ESPRIMO: P758, D738, D758, P958, D958
✔️ CELSIUS: W580
✔️ ThinkSystem: ST50 E-2100 and ST50 E-2200 configurations supporting non-ECC DDR4-2666 UDIMMs
✔️ Newer DDR4 Systems That Operate This Module at 2666 MT/s: OptiPlex 3080 Tower/SFF, 5080 Tower/SFF, 7080 Tower/SFF, 3090 Tower/SFF, 5090 Tower/SFF, 7090 Tower/SFF; Precision 3440 SFF, 3450 SFF, 3640 Tower, 3650 Tower; ThinkCentre M75s Gen 2, M75t Gen 2; ThinkStation P340 SFF, P340 Tower; ProDesk 400 G6/G7 Microtower and SFF, ProDesk 405 G6 SFF, ProDesk 600 G5/G6 Microtower and SFF, EliteDesk 800 G5/G6 Tower and SFF, Z2 G5 SFF and Tower
✔️ Older DDR4 Systems With 2400 or 2133 MT/s Downclocking: OptiPlex 3040 Tower/SFF, 5040 Tower/SFF, 7040 Tower/SFF, 3050 Tower/SFF, 5050 Tower/SFF, 7050 Tower/SFF; ThinkCentre M710 Tower, M710 SFF, M710e SFF, M910 Tower, M910 SFF; 280 G3 Microtower/SFF, 290 G1 SFF, 290 G2 Microtower, Slimline 290-p0xx configurations with 288-pin DIMM slots; ESPRIMO P557, D757; CELSIUS W570
✔️ X570 Motherboards: PRIME X570-P, PRIME X570-PRO, TUF GAMING X570-PLUS, TUF GAMING X570-PLUS WI-FI, TUF GAMING X570-PRO WI-FI, ROG STRIX X570-E GAMING, ROG STRIX X570-F GAMING, ROG STRIX X570-I GAMING, ROG CROSSHAIR VIII HERO, CROSSHAIR VIII HERO WI-FI, CROSSHAIR VIII FORMULA, CROSSHAIR VIII DARK HERO, CROSSHAIR VIII IMPACT, X570-A PRO, MPG X570 GAMING PLUS, MPG X570 GAMING EDGE WIFI, MPG X570 GAMING PRO CARBON WIFI, MEG X570 ACE, MEG X570 UNIFY, MEG X570 GODLIKE, X570 UD, X570 GAMING X, X570 AORUS ELITE, X570 AORUS PRO WIFI, X570 AORUS ULTRA, X570 AORUS MASTER, X570 AORUS XTREME, X570 Phantom Gaming 4, X570 Extreme4, X570 Steel Legend, X570 Taichi, X570 Creator
✔️ B450 / X470 Motherboards: PRIME B450-PLUS, PRIME B450M-A, TUF B450M-PLUS GAMING, ROG STRIX B450-F GAMING, ROG STRIX B450-I GAMING, PRIME X470-PRO, TUF X470-PLUS GAMING, ROG STRIX X470-F GAMING, ROG CROSSHAIR VII HERO, B450 TOMAHAWK, B450 TOMAHAWK MAX, B450-A PRO, B450-A PRO MAX, B450 GAMING PLUS, B450 GAMING PLUS MAX, B450M MORTAR, B450M MORTAR MAX, B450M BAZOOKA, X470 GAMING PLUS, X470 GAMING PRO, X470 GAMING PRO CARBON, B450 AORUS ELITE, B450 AORUS PRO WIFI, B450M DS3H, B450M S2H, B450M AORUS, B450M-HDV, B450M Pro4, B450M Steel Legend, B450 Pro4, Fatal1ty B450 Gaming K4, X470 Master SLI, X470 Taichi
✔️ B360 / H370 Motherboards: PRIME B360-PLUS, PRIME B360M-A, TUF B360-PLUS GAMING, TUF B360M-PLUS GAMING, ROG STRIX B360-F GAMING, B360-G GAMING, B360-H GAMING, B360-I GAMING, PRIME H370-PLUS, PRIME H370-A, ROG STRIX H370-F GAMING, H370-I GAMING, B360-A PRO, B360M PRO-VD, B360M PRO-VDH, B360M BAZOOKA, B360M MORTAR, B360 GAMING PLUS, B360 GAMING PRO CARBON, H370 GAMING PRO CARBON, H370M BAZOOKA, B360M DS3H, B360 HD3, B360 AORUS GAMING 3, H370 HD3, H370 AORUS GAMING 3 WIFI, B360M-HDV, B360M Pro4, B360 Pro4, Fatal1ty B360 Gaming K4, H370M Pro4, H370 Pro4, Fatal1ty H370 Performance
✔️ Z370 / Z390 Motherboards: PRIME Z370-A II, ROG STRIX Z370-E GAMING, Z370-F GAMING, Z370-G GAMING, Z370-H GAMING, Z370-I GAMING, PRIME Z390-A, ROG STRIX Z390-E GAMING, Z390-F GAMING, Z390-H GAMING, Z390-I GAMING, Z370-A PRO, Z370 PC PRO, Z370 GAMING PLUS, Z370 KRAIT GAMING, Z390-A PRO, MPG Z390 GAMING PLUS, MPG Z390 GAMING EDGE AC, MPG Z390 GAMING PRO CARBON, Z370 HD3, Z370 HD3P, Z370 AORUS GAMING 5, Z370 AORUS GAMING 7, Z390 UD, Z390 GAMING X, Z390 AORUS ELITE, Z390 AORUS PRO, Z390 AORUS MASTER, Z370 Pro4, Z370 Extreme4, Z370 Taichi, Fatal1ty Z370 Gaming K6, Z390 Pro4, Z390 Extreme4, Z390 Taichi, Z390 Phantom Gaming 4
✔️ C246 Boards Supporting Non-ECC UDIMMs: WS C246 PRO, Pro WS C246-ACE, P11C-I, P11C-M/4L
✔️ X299 Motherboards: PRIME X299-A, PRIME X299-A II, PRIME X299-DELUXE, PRIME X299-DELUXE II, TUF X299 MARK 1, TUF X299 MARK 2, ROG RAMPAGE VI APEX, RAMPAGE VI EXTREME, RAMPAGE VI EXTREME OMEGA, RAMPAGE VI HERO, WS X299 PRO, X299 PRO, X299 PRO 10G, X299 SLI PLUS, X299 TOMAHAWK, X299 GAMING PRO CARBON AC, X299 UD4, X299 UD4 PRO, X299 AORUS GAMING 3, X299 AORUS GAMING 7, X299 AORUS GAMING 9, X299 Extreme4, X299 Taichi, X299 Killer SLI
✔️ Newer DDR4 Motherboards: PRO H610M-S WIFI DDR4, PRIME H610M-A D4, PRIME H610M-K D4, H610M H DDR4, H610M S2H DDR4, H610M DS2 DDR4
✔️ General Platform Support: Desktop computers, workstation towers, small-form-factor systems, and motherboards equipped with 288-pin DDR4 slots that accept 8GB 1Rx8, non-ECC, unbuffered 1.2V UDIMMs
☑️ 8GB DDR4-2666 desktop memory capacity
☑️ True 1Rx8 single-rank organization
☑️ Standard 288-pin full-size UDIMM form factor
☑️ JEDEC-standard CL19 operation at 1.2V
☑️ Non-ECC unbuffered construction for compatible desktop platforms
☑️ No XMP profile or manual overclocking required
☑️ Supports dual-channel operation when installed with a matching module
☑️ Suitable for memory replacement, system repair, refurbishment, and capacity upgrades
☑️ Compatible with many 2933 and 3200 MT/s DDR4 platforms at a 2666 MT/s operating speed
☑️ Can downclock on many 2400 and 2133 MT/s platforms when supported by the motherboard, processor, BIOS, and SPD
☑️ Verified against the exact labels shown in the attached photos
☑️ Module label, PCB shade, component markings, and production revision may vary without changing the required specification
✓ This is a 288-pin desktop UDIMM and will not fit 260-pin laptop SO-DIMM slots.
✓ This module is non-ECC and unbuffered. It is not interchangeable with ECC UDIMM, RDIMM, LRDIMM, or registered server memory.
✓ Confirm your system supports 8GB 1Rx8 DDR4 UDIMMs. Similar-looking 1Rx16 or 2Rx8 modules may not be interchangeable in rank-sensitive systems.
✓ Match the DDR4 generation, capacity, voltage, speed, rank, ECC type, and form factor before ordering.
✓ Systems limited to 2400 or 2133 MT/s may operate this module at the lower supported speed when supported by the processor, motherboard, and BIOS.
✓ When different memory modules are mixed, all installed memory may operate at the slowest shared speed and timing.
✓ For the most reliable dual-channel operation, use two modules with matching capacity, rank, speed, and complete part number.
✓ This listing includes one 8GB memory module.
✓ Check your system’s maximum memory capacity, supported capacity per slot, and required slot-installation order before upgrading.
