Your Browsing History
- In Stock
- Sold by Newegg
- AI Ready
- Make an Offer
- New
- Combo Deals Only
Any questions? Our AI mode will help you find out quickly.
Try me now

DDR4 Desktop RAM Memory Upgrades
Shop A-Tech

Quick View
G.SKILL Ripjaws V Series 16GB (2 x 8GB) DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C19D-16GVR
- CAS Latency: CL19
- Voltage: 1.20V
- Multi-channel Kit: Dual Channel Kit
- Timing: 19-19-19-43
- Model #: F4-2666C19D-16GVR
- $169.00 –
- Free Shipping

Quick View
M393A1K43BB1-CTD6Q Samsung 8GB PC4-21300 DDR4-2666MHz ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory Module
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: M393A1K43BB1-CTD6Q
- $71.49 –
- More options from $71.49 - $79.00
- Free Shipping

Quick View
Kingston 8GB DDR4 SDRAM ECC Registered DDR4 2666 (PC4 21300) (Server Memory) Model KSM26RS8/8HAI
- CAS Latency: CL19
- Timing: 19-19-19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: KSM26RS8/8HAI
- $79.00 –
- Free Shipping

Quick View
MemoryMasters 8GB DDR4 PC4-21300, 2666MHZ, 288 PIN DIMM, 1.2V, CL 19 Desktop Ram Memory Module
- CAS Latency: CL19
- Model #: M-M-2013 B07F72RJYN
- $64.99 –
- Free Shipping

Quick View
DELL 8GB 1x8GB DDR4 2666MHz 288pin DIMM Server Memory Module SNPD715XC8G
OUT OF STOCK
- CAS Latency: CL1.5
- ECC: ECC
- Color: Black
- LED Color: None
- Model #: SNPD715XC8G
- COMING SOON

Quick View
ADATA Premier 8GB (1 x 8GB) 288-pin DIMM DDR4 2666 MHz CL19 Memory (AD4U26668G19-SGN)
- CAS Latency: CL19
- Color: Green
- Model #: AD4U26668G19-SGN
- $86.99 –

Quick View
Black Diamond Memory 8GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model BD8G2666MQR26
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx4
- Model #: BD8G2666MQR26
- $399.99 –
- Free Shipping

Quick View
Black Diamond Memory 16GB (2 x 8GB) ECC Registered DDR4 2666 (PC4 21300) Server Memory Model BD8GX22666MQR26
- Type: 288-Pin DDR4 SDRAM
- Rank: 1Rx4
- Model #: BD8GX22666MQR26
- $699.99 –
- Free Shipping

Quick View
Black Diamond Memory 8GB DDR4 2666 (PC4 21300) Desktop Memory Model BD8G2666MQ22
- BIOS/Performance Profile: Intel XMP 2.0
- 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 #: BD8G2666MQ22
- $97.99 –
- Free Shipping

Quick View
M393A1G43EB1-CTD Samsung 8GB PC4-21300 DDR4-2666MHz ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank Memory Module
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx8
- Model #: M393A1G43EB1-CTD
- $99.00 –
- Free Shipping

Quick View
Kingston 8GB 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model KCP426NS6/8
- CAS Latency: CL19
- Voltage: 1.20V
- Buffered/Registered: Unbuffered
- BIOS/Performance Profile: Intel XMP 2.0
- Model #: KCP426NS6/8

Quick View
HYNIX HMA81GR7MFR8N-UH 8GB (1X8GB) 2400MHZ PC4-19200 CL17 ECC REGISTERED SINGLE RANK DDR4 SDRAM 288-PIN RDIMM HYNIX MEMORY FOR SERVER MEMORY.
- Chipset: Major Brand Chipset
- CAS Latency: CL17
- Voltage: 1.20V
- Multi-channel Kit: Dual Channel Kit
- Model #: HMA81GR7MFR8N-UH
- $59.00 –
- More options from $59.00 - $77.64
- Free Shipping

Quick View
Hynix 8GB DDR4 PC4-21300 2666MHz 260-pin CL19 1.2v Unbuffered NON-ECC SODIMM RAM Memory (HMA81GS6CJR8N-VK) Compatible With Precision 3550
- Brand: SK hynix inc.
- Capacity: 8GB
- Speed: DDR4 2666 (PC4 21300)
- Buffered/Registered: Unbuffered
- Model #: SKU0229-QDD251
- $57.99 –
- Free Shipping

Quick View
Kingston 8GB DDR4 SDRAM Memory Module (kcp426ns8-8) (kcp426ns8/8)
- CAS Latency: CL19
- LED Color: None
- Model #: 502-581007000392289
- $68.00 –

Quick View
Supermicro (HMA81GR7AFR8N-VK) 8GB SDRAM ECC Registered DDR4 2666 (PC4 21300) Server Memory Model MEM-DR480L-HL02-ER26
- CAS Latency: CL19
- Timing: 19-19-19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: MEM-DR480L-HL02-ER26
- $71.49 –
- Free Shipping

Quick View
SK Hynix 16GB(2X8GB) DDR4 1RX8 PC4-21300 HMA81GU6JJR8N-VK UIMM Desktop RAM 2666mhz PIN-288 1.2V
- CAS Latency: CL19
- Buffered/Registered: Unbuffered
- Model #: hynix-8gb-ud-2666 X2
- $122.80 –

Quick View
samsung 8gb ddr4 2666mhz dimm pc4-21300 288-pin 1rx8 1.2v udimm desktop memory upgrade m378a1k43cb2-ctd
- CAS Latency: CL19
- Voltage: 1.20V
- Chipset: Samsung Chipset
- Buffered/Registered: Unbuffered / Unregistered
- Model #: RNAB08LR1KDQC
- $72.00
- $66.89 –
- Save: $5.11 (7%)
- Free Shipping

Quick View
AddOn 8GB DDR4 SDRAM Memory Module
- CAS Latency: CL17
- Voltage: 1.20V
- ECC: Non-ECC
- Buffered/Registered: Unbuffered
- Model #: AA2666D4SR8N/8G
- $116.59 –
- More options from $116.59 - $127.23
- Free Shipping

Quick View
Refurbished Ballistix Sport LT 8GB Single DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - BLS8G4D26BFSE (Red)
- CAS Latency: CL16
- Voltage: 1.20V
- Timing: 16-18-18
- Buffered/Registered: Unbuffered
- Model #: BLS8G4D26BFSE
- $63.99 –
- Free Shipping

Quick View
G.SKILL Ripjaws V Series 8GB DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C19S-8GVR
- CAS Latency: CL19
- Voltage: 1.20V
- Timing: 19-19-19-43
- Recommend Use: AMD X570 / X470 / B550 / B450 Intel Z690 DDR4 / Z590 / Z490 / Z390 / Z370 / Z270 / Z170
- Model #: F4-2666C19S-8GVR
- $139.00 –
- More options from $60.00 - $139.00
- Free Shipping

Quick View
Refurbished Crucial 8GB DDR4-2666(PC4-21300) UDIMM CL-19 1.2V Unbuffered Non-ECC288-PIN Desktop Memory - CT8G4DFRA266
- CAS Latency: CL19
- Capacity: 8GB
- Speed: DDR4 2666 (PC4 21300)
- Color: Green
- Model #: CT8G4DFRA266.M8FR
- $350.00 –
- Free Shipping

Quick View
Refurbished Crucial 8GB DDR4 2666 (PC4 21300) Desktop Memory Model CT8G4DFS8266
- CAS Latency: CL19
- Voltage: 1.20V
- Buffered/Registered: Unbuffered
- Features: Speeds start at 2133 MT/s and faster data rates are expected to be available as DDR4 technology matures Increase bandwidth by up to 32% Reduce power consumption by up to 40% Faster burst access speeds for improved sequential data throughput Optimized for next generation processors and platforms Available in four channel kits up to 64GB
- Model #: CT8G4DFS8266
- $74.99 –
- Free Shipping

Quick View
1X8GB DDR4 NON ECC 2666MHZ DIMM 1RX8, 2RX8
- Capacity: 8GB
- Speed: DDR4 2666 (PC4 21300)
- Buffered/Registered: Unbuffered
- Chipset: Major Brand Chipset
- Model #: 840055587398
- $52.00 –
- Free Shipping

Quick View
CMS 8GB (1X8GB) Memory Ram Compatible with Acer Aspire Nitro 6 Nitro 5 (AN517-51-56YW), Aspire 7 A715-74G-73QX - D36
- Voltage: 1.2V
- Compatible System: Acer Aspire Nitro 6 Nitro 5 (AN517-51-56YW), Aspire 7 A715-74G-73QX
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: 840055534408
- $52.00 –
- Free Shipping

Quick View
CMS 8GB (1X8GB) DDR4 21300 2666MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Latitude 15 (5500), Latitude 15 (5591), Latitude 5300, Latitude 5501 - D36
- Voltage: 1.2V
- Compatible System: Dell Latitude 15 (5500), Latitude 15 (5591), Latitude 5300, Latitude 5501
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: 840055534170
- $52.00 –
- Free Shipping

Quick View
HyperX FURY 8GB DDR4 2666 (PC4 21300) Desktop Memory Model HX426C16FB3A/8
- CAS Latency: CL16
- Voltage: 1.20V
- Timing: 16-18-18
- Buffered/Registered: Unbuffered
- Model #: HX426C16FB3A/8
- $149.99 –
- Free Shipping

Quick View
G.SKILL Aegis 16GB (2 x 8GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C19D-16GIS
- CAS Latency: CL19
- Voltage: 1.20V
- Multi-channel Kit: Dual Channel Kit
- Timing: 19-19-19-43
- Model #: F4-2666C19D-16GIS
- $129.00 –
- Free Shipping

Quick View
CMS 8GB (1X8GB) Memory Ram Compatible with Dell OptiPlex OptiPlex 7070 Small Form Factor (SFF), OptiPlex 7070 Tower - D24
- Voltage: 1.20V
- Compatible System: Dell OptiPlex OptiPlex 7070 Small Form Factor (SFF), OptiPlex 7070 Tower
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: 840055539083
- $52.00 –
- Free Shipping

Quick View
CMS 8GB (1x8GB) DDR4 21300 2666MHZ NON ECC SODIMM Memory Ram Upgrade Compatible with Dell® G3 15 (3579) Gaming, G3 17 (3779) Gaming - D36
- Voltage: 1.2V
- Compatible System: Dell G3 15 (3579) Gaming, G3 17 (3779) Gaming
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: CM512648500SO016
- $52.00 –
- Free Shipping

Quick View
CMS 8GB (1X8GB) Memory Ram Compatible with HP/Compaq EliteDesk 800 G4 Series Tower, EliteDesk 800 G4 Series SFF, 800 G4 Workstation Edition - D24
- Voltage: 1.20V
- Compatible System: HP/Compaq EliteDesk 800 G4 Series Tower, EliteDesk 800 G4 Series SFF, 800 G4 Workstation Edition
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: 840055539120
- $52.00 –
- Free Shipping

Quick View
Lenovo - 4ZC7A08696 - Lenovo 8GB TruDDR4 Memory Module - 8 GB (1 x 8 GB) - DDR4-2666/PC4-21333 TruDDR4 - CL19 - 1.20 V -
- Voltage: 1.20V
- Model #: 4ZC7A08696
- $108.90 –
- More options from $108.90 - $183.44
- Free Shipping

Quick View
G.SKILL Aegis 8GB DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C19S-8GIS
- CAS Latency: CL19
- Voltage: 1.20V
- Timing: 19-19-19-43
- Recommend Use: AMD X399 / TRX40 / X570 / X470 / B550 / B450 / B350 Intel X99 / X299 / Z790 DDR4 / Z690 DDR4 / Z590 / Z490 / Z390 / Z370 / Z270 / Z170
- Model #: F4-2666C19S-8GIS
- $75.00 –
- More options from $75.00 - $89.99
- Free Shipping

Quick View
CMS 8GB (1X8GB) DDR4 21300 2666MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Lenovo® IdeaCentre 510-15ICK, 510A-15ARR, 510A-15ICB, 510A-15ICK, T540-15AMA-G, T540-15ICB G - D24
- Voltage: 1.20V
- Compatible System: Lenovo IdeaCentre 510-15ICK, 510A-15ARR, 510A-15ICB, 510A-15ICK, T540-15AMA-G, T540-15ICB G
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: 840055539014
- $52.00 –
- Free Shipping

Quick View
CMS 8GB (1X8GB) DDR4 21300 2666MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Dell® Inspiron 15 3593, Inspiron 17 (7790) 2-in-1, Inspiron 17 3793 - D36
- Voltage: 1.2V
- Compatible System: Dell Inspiron 15 3593, Inspiron 17 (7790) 2-in-1, Inspiron 17 3793,
- CAS Latency: CL19
- Timing: 19-19-19
- Model #: 840055534163
- $52.00 –
- Free Shipping

Quick View
Kingston KTH-PL426S8/8G 8GB DDR4 SDRAM Memory Module - 8 GB (1 x 8GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - ECC - Registered - 288-pin - DIMM
OUT OF STOCK
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR5 SDRAM
- Rank: 1Rx8
- Model #: KTH-PL426S8/8G
- COMING SOON














