Your Browsing History
- In Stock
- Sold by Newegg
- New
Any questions? Our AI mode will help you find out quickly.
Try me now

DDR4 Desktop RAM Memory Upgrades
Shop A-Tech

Quick View
HMA82GU6JJR8N-VK Hynix Replacement 16GB DDR4-2666 PC4-21300 Non-ECC Unbuffered Memory by Avarum RAM
- CAS Latency: CL19
- Voltage: 1.20V
- Timing: 19-19-19
- Buffered/Registered: Unbuffered
- Model #: NRG130
- $134.58 –
- Free Shipping

Quick View
16GB RAM Replacement for HP 815098-B21, 815098-K21, 838081-H21, 838081-K21, 840757-091, 840757-191, 845264-B21, 872970-001, 881067-B21, P26030-001 | DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx4 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 1Rx4
- Model #: 5053772484085
- $161.16 –

Quick View
SAMSUNG 32GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model M393A4K40BB2-CTD
- CAS Latency: CL17
- Timing: 17-17-17
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: 3SA266619R5-32GPBOP-
- $259.37 –

Quick View
16GB RAM Replacement for Micron MTA18ASF2G72PDZ-2G6B1, MTA18ASF2G72PDZ-2G6D1QG, MTA18ASF2G72PDZ-2G6E1, MTA18ASF2G72PDZ-2G6H1R, MTA18ASF2G72PDZ-2G6J1 | DDR4 2666 PC4-21300 ECC RDIMM 2Rx8 Server Memory
- Chipset: Micron Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2Rx8
- Model #: NE-PNR-2043
- $183.14 –

Quick View
SNPTP9W1C/16G - Dell Compatible 16GB PC4-21300 DDR4-2666MHz 2Rx8 1.2V Non-ECC UDIMM
- CAS Latency: CL15
- Voltage: 1.20V
- Chipset: Major Brand Chipset
- Buffered/Registered: Unregistered
- Model #: SNPTP9W1C/16G
- $159.45 –

Quick View
Hynix HMA81GU7CJR8N-VK 8GB DDR4-2666 ECC UDIMM
- Type: 288-Pin DDR4 SDRAM
- Rank: 1Rx8
- Model #: HMA81GU7CJR8N-VK
- $119.99 –
- Free Shipping

Quick View
Black Diamond Memory 16GB (2 x 8GB) 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model BD8GX22666MQN22
- CAS Latency: CL19
- Features: With decades of experience specializing in memory and server parts, Black Diamond Memory is a proven manufacturer in the industry. Our products currently support over 200,000 configurations as well as support for enterprise servers, desktops, laptops, and a large variety of other devices.
- Model #: BD8GX22666MQN22
- $192.99 –
- Free Shipping

Quick View
Supermicro Certified MEM-DR416L-HL01-EU26 Hynix HMA82GU7CJR8N-VK 16GB DDR4-2666 ECC UDIMM
- CAS Latency: CL11
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx8
- Model #: HY4162666ECCD8-1-M6
- $169.99 –

Quick View
ADATA DDR4 memory, 8GB capacity, 2666MHz frequency, 260Pin SODIMM DDR4 laptop specification.
- Model #: DDR4-2666-8GB-SO-DIMM-CLASSIC
- $129.99 –
- Free Shipping

Quick View
Hynix HMA84GR7AFR4N-VK 32GB DDR4-2666 ECC REG DIMM
- Type: 288-Pin DDR4 SDRAM
- Model #: 421-001712000361964
- $251.49 –

Quick View
(NOT FOR HOME PC!) A-Tech 64GB 2x 32GB 2Rx8 PC4-21300 DDR4 2666 MHz ECC UNB UDIMM Server Memory RAM
- Model #: AT32G2D4D2666UD8-2J
- $1,113.97 –

Quick View
Supermicro Certified MEM-DR432L-CL01-ER26 Micron 32GB DDR4-2666 ECC RDIMM
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: ae9-608579000332323
- $212.21 –

Quick View
SAMSUNG 16GB 288-Pin DDR4 SDRAM Registered DDR4 2666 (PC4 21300) Server Memory M393A2K43CB2-CTD
- Voltage: 1.20V
- Rank: 2Rx8
- Model #: M393A2K43CB2-CTD
- $127.00 –
- More options from $127.00 - $193.04

Quick View
Micron Model MTA72ASS8G72LZ-2G6D2SI 64GB DDR4-2666 Load Reduced DIMM for Intel S9232WK2HAC
(Crucial CT64G4LFQ4266 Equivalent)
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: FN804
- $379.00 –
- Free Shipping

Quick View
- $179.70 –

Quick View
Samsung 8GB DDR4 2666 PC4-21300 1Rx8 SODIMM Laptop Memory RAM (M471A1K43CB1-CTD)
- Model #: M471A1K43CB1CTD-TC
- $111.14 –

Quick View
Crucial/Micron SDRAM 16GB 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model CT16G4SFD8266 for Latitude Laptops
- Voltage: 1.20V
- Compatible System: Compatible with Latitude Laptops
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: CT16G4SFD8266-62
- $109.99 –

Quick View
16GB DDR4-2666 Dell OptiPlex 7050 SFF 5060 MT 5060 SFF 7040 SFF Memory RAM
- Model #: EB37A47-CS
- $197.78 –

Quick View
32GB 2x16GB DDR4-2666 MSI B250M PRO-VD B350 TOMAHAWK B360 GAMING PLUS Memory RAM
- Model #: EB59A30703-JP
- $385.55 –

Quick View
G.SKILL Ripjaws Series 16GB (2 x 8GB) 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model F4-2666C19D-16GRS
- CAS Latency: CL19
- Timing: 19-19-19-43
- Voltage: 1.20V
- Buffered/Registered: Unbuffered
- Model #: F4-2666C19D-16GRS
- $203.14 –
- More options from $203.14 - $209.91

Quick View
G.SKILL Ripjaws Series 32GB (2 x 16GB) 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model F4-2666C19D-32GRS
- CAS Latency: CL19
- Timing: 19-19-19-43
- Voltage: 1.20V
- Buffered/Registered: Unbuffered
- Model #: F4-2666C19D-32GRS
- $390.81 –
- More options from $390.81 - $405.06

Quick View
SAMSUNG M393A4K40CB2-CTD6Q Samsung DDR4-2666 32GB/2Gx4 ECC/REG CL19 Server Memory
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Parts: 1 Year
- Model #: SA#M393A4K40CB2CTD6
- $259.37 –

Quick View
SK hynix HMA851S6CJR6N - VK Non ECC PC4-2666V 4GB DDR4 at 2666MHz 260pin SDRAM SODIMM Single Kit Laptop Memory - OEM
- CAS Latency: CL19
- Voltage: 1.20V
- Buffered/Registered: Unbuffered
- Model #: 631719218792
- $30.30 –

Quick View
Kingston KSM26RS8/8MRR Server Premier - DDR4 - module - 8 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - CL19 - 1.2 V - registered with parity - ECC
- Brand: Kingston
- Capacity: 8GB
- Speed: DDR4 2666 (PC4 21300)
- ECC: Yes
- Model #: KSM26RS8/8MRR

Quick View
Samsung - M386A8K40BM2-CTD - Samsung 64GB DDR4 SDRAM Memory Module - 64 GB (1 x 64 GB) - DDR4-2666/PC4-21300 DDR4 SDRAM
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: M386A8K40BM2-CTD
- $349.99
- $282.99 –
- Save: $67.00 (19%)
- More options from $282.99 - $699.00

Quick View
Kingston KSM26RD4/64MFR 64GB DDR4 SDRAM Memory Module - For PC/Server - 64 GB (1 x 64GB) - DDR4-2666/PC4-21333 DDR4 SDRAM - 2666 MHz Dual-rank Memory - CL19 -1.20 V-ECC- Registered, Buffered - 288 pin
OUT OF STOCK
- Brand: Kingston
- Capacity: 64GB
- Speed: DDR4 2666 (PC4 21300)
- ECC: Yes
- Model #: KSM26RD4/64MFR
- COMING SOON

Quick View
Patriot Viper Steel 8GB 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model PVS48G266C8S
- CAS Latency: CL18
- Timing: 18-18-18-43
- Voltage: 1.20V
- Features: Patriot's Viper Steel SODIMM deliver cutting-edge performance for notebooks and small form-factor PC's without sacrificing reliability. Built for the latest Intel and AMD platforms, Viper Steel SODIMM provides the best performance and stability for the most demanding computer environments. Made to ensure rock-solid and easy-to-use plug and play performance, even for the most demanding games and applications. Built from the highest quality materials, Patriot's Viper Steel SODIMM memory modules are hand-tested and validated for system compatibility. Patriot's Viper Steel SODIMM Series will be offered at speeds from 2400MHz up to 3000MHz with XMP 2.0 support. Easily upgrade, load files faster, and increase responsiveness to improve your system with Viper Steel SODIMM modules....
- Model #: PVS48G266C8S
- $88.92 –
- $7.85 Shipping

Quick View
Kingston KSM26RS4/16HDI 16GB DDR4 SDRAM Memory Module - For Server - 16 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC/Parity - Registered - 288-pin - DIMM
- Brand: Kingston
- Series: Premier Series
- Capacity: 16GB
- Speed: DDR4 2666 (PC4 21300)
- Model #: KSM26RS4/16HDI
- $301.79 –
- Free Shipping

Quick View
Samsung 32GB 288-Pin DDR4 2666 (PC4 21300) RDIMM 1.2V Server Memory Model M393A4K40BB2-CTD
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx4
- Model #: M393A4K40BB2-CTD
- $259.37 –
- More options from $214.99 - $259.37

Quick View
PWR5T - Dell Compatible 16GB PC4-21300 DDR4-2666Mhz 2Rx8 1.2v 288-Pin DDR4 SDRAM
- Chipset: Major Brand Chipset
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx8
- Model #: PWR5T
- $159.45 –

Quick View
Patriot Signature Line 8GB 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model PSD48G266681S
- CAS Latency: CL19
- Timing: 19-19-19-43
- Voltage: 1.20V
- Buffered/Registered: Unbuffered
- Model #: PSD48G266681S
- $83.75 –

Quick View
815097-B21 - HP Compatible 8GB PC4-21300 DDR4-2666Mhz 1Rx8 1.2v Registered RDIMM
- Chipset: Major Brand Chipset
- CAS Latency: CL15
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: 815097-B21
- $94.45 –

Quick View
Samsung - M393A2K40CB2-CTD - Samsung 16GB DDR4 SDRAM Memory Module - 16 GB (1 x 16 GB) - DDR4-2666/PC4-21300 DDR4 SDRAM
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 1Rx4
- Model #: M393A2K40CB2-CTD
- $141.95 –
- More options from $141.95 - $169.87
- Free Shipping











