• In Stock
  • Sold by Newegg
  • AI Ready
  • Make an Offer
  • New
Department
Show More
Brands
Show More
Price
Show More
Speed
Capacity
Show More
Type
Show More
CAS Latency
Multi-channel Kit
Recommend Use
Voltage
ECC
Color
BIOS/Performance Profile
LED Color
All Top Brands
Availability
Condition
Total Capacity
Current Promotion
Sold by
Useful Links
Customer Ratings
avatar

Any questions? Our AI beta will help you find out quickly.

Sort By:
View:
32GB RAM Replacement for Samsung M378A4G43MB1-CTD | DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory
Quick View
32GB RAM Replacement for Samsung M378A4G43MB1-CTD | DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory
  • Voltage: 1.20V
  • Recommend Use: AMD & Intel Compatible
  • Buffered/Registered: Unbuffered
  • Tested Frequency: 2666
  • Model #: 5053772475014
  •  
  • $192.90 
Direct from A-Tech Direct from A-Tech
32GB RAM Replacement for Micron MTA16ATF4G64AZ-2G6, MTA16ATF4G64AZ-2G6B1 | DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory
Quick View
32GB RAM Replacement for Micron MTA16ATF4G64AZ-2G6, MTA16ATF4G64AZ-2G6B1 | DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory
  • Voltage: 1.20V
  • Recommend Use: AMD & Intel Compatible
  • Buffered/Registered: Unbuffered
  • Tested Frequency: 2666
  • Model #: 5053772474581
  •  
  • $192.90 
Direct from A-Tech Direct from A-Tech
OWC 16GB DDR4 2666 PC4-21300 CL19 2Rx8 260-pin 1.2V ECC Unbuffered SODIMM Memory RAM Module Upgrade Compatible with Synology RackStation RS2825RP+
Quick View
OWC 16GB DDR4 2666 PC4-21300 CL19 2Rx8 260-pin 1.2V ECC Unbuffered SODIMM Memory RAM Module Upgrade Compatible with Synology RackStation RS2825RP+
  • Voltage: 1.2V
  • Compatible System: Synology RackStation RS2825RP+ Synology DiskStation DS1825+ Synology DiskStation DS1825xs+ Synology DiskStation DS725+ Synology DiskStation DS925+
  • CAS Latency: CL19
  • Part Number: 2C6D42R816GB
  • Model #: OWC2C6D42R816GB-C329-SF
  •  
  • $145.99 
Available Direct from OWC Available Direct from OWC
SK hynix DDR4-2666 32GB/2Gx4 ECC/REG CL19 Server Memory
Quick View
A-Tech 128GB Kit (4x32GB) RAM for Apple iMac (2019, 2020) | DDR4 2666MHz PC4-21300 SODIMM 260-Pin Memory Upgrade
Quick View
A-Tech 128GB Kit (4x32GB) RAM for Apple iMac (2019, 2020) | DDR4 2666MHz PC4-21300 SODIMM 260-Pin Memory Upgrade
  • Voltage: 1.20V
  • Compatible System: Apple Mac Systems
  • Rank: 2Rx8
  • Parts: Lifetime
  • Model #: NE-MAC-0074
  •  
  • $774.39 
Direct from A-Tech Direct from A-Tech
Crucial 32GB DDR4 2666 (PC4-21300) SDRAM Server Memory ECC Registered
Quick View
Crucial 32GB DDR4 2666 (PC4-21300) SDRAM Server Memory ECC Registered
  • Chipset: Micron Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Multi-channel Kit: Quad Channel Kit
  • Model #: CT32G4RFD4266
Kingston KSM26RD4/32HDI  32GB DDR4 SDRAM Memory Module - For Server - 32 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC/Parity - Registered - 288-pin - DIMM
Quick View
128GB RAM Replacement for Hynix HMABAGR7A4R4N-VN | DDR4 2666MHz PC4-21300 ECC RDIMM 2S4Rx4 (8Rx4 3DS/TSV) Server Memory
Quick View
128GB RAM Replacement for Hynix HMABAGR7A4R4N-VN | DDR4 2666MHz PC4-21300 ECC RDIMM 2S4Rx4 (8Rx4 3DS/TSV) Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2S4Rx4 (8Rx4)
  • Model #: NE-PNR-1834
  •  
  • $649.99 
Direct from A-Tech Direct from A-Tech
OWC 8GB Replacement for QNAP RAM-8GDR4ECT0-SO-2666 8GB DDR4 2666 PC4-21300 CL19 1Rx8 260-pin 1.2V ECC Unbuffered SODIMM Memory RAM Module Upgrade
Quick View
OWC 8GB Replacement for QNAP RAM-8GDR4ECT0-SO-2666 8GB DDR4 2666 PC4-21300 CL19 1Rx8 260-pin 1.2V ECC Unbuffered SODIMM Memory RAM Module Upgrade
  • Brand: OWC
  • Capacity: 8GB
  • Type: 260-Pin DDR4 SO-DIMM
  • Speed: DDR4 2666 (PC4 21300)
  • Model #: OWC2C6D41R808GB-B576-SF
  •  
  • $79.99 
Direct from OWC Direct from OWC
A-Tech 128GB Kit (4x32GB) RAM for Apple iMac Pro (Late 2017) | DDR4 2666MHz PC4-21300 ECC RDIMM 288-Pin Memory Upgrade
Quick View
A-Tech 128GB Kit (4x32GB) RAM for Apple iMac Pro (Late 2017) | DDR4 2666MHz PC4-21300 ECC RDIMM 288-Pin Memory Upgrade
  • Voltage: 1.20V
  • Compatible System: Apple Mac Systems
  • Rank: 2Rx4
  • Parts: Lifetime
  • Model #: NE-MAC-0069
  •  
  • $971.09 
Direct from A-Tech Direct from A-Tech
SK Hynix 32GB DDR4 2666MHz PC4-21300 Laptop RAM PC4-SO-DIMM HMAA4GS6MJR8N-VK 1pc
Quick View
SK hynix
SK Hynix 32GB DDR4 2666MHz PC4-21300 Laptop RAM PC4-SO-DIMM HMAA4GS6MJR8N-VK 1pc
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Buffered/Registered: Unbuffered
  • Multi-channel Kit: Dual Channel Kit
  • Model #: HMAA4GS6MJR8N-VK
16GB RAM Replacement for Kingston KSM26RD8/16HDI | DDR4 2666MHz PC4-21300 ECC RDIMM 2Rx8 Server Memory
Quick View
16GB RAM Replacement for Kingston KSM26RD8/16HDI | DDR4 2666MHz PC4-21300 ECC RDIMM 2Rx8 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 2Rx8
  • Model #: 5053772488083
  •  
  • $146.86 
Direct from A-Tech Direct from A-Tech
8GB RAM Replacement for Crucial CT8G4DFD8266 | DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory
Quick View
8GB RAM Replacement for Crucial CT8G4DFD8266 | DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Chipset: Major Brand Chips
  • Recommend Use: AMD & Intel Compatible
  • Model #: 5053772481190
  •  
  • $63.91 
Direct from A-Tech Direct from A-Tech
RIMLANCE RAM 32GB (2X16GB) 1.2V DDR4 2666MHz PC4-21300 ECC SODIMM 1RX8
Quick View
RIMLANCE RAM 32GB (2X16GB) 1.2V DDR4 2666MHz PC4-21300 ECC SODIMM 1RX8
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx8
  • Model #: RES21300S8C2K32
  •  
  • $278.00 
  • Free Shipping
Direct from RIMLANCE Direct from RIMLANCE
NEMIX RAM 32GB (4X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with ASUS Motherboards
Quick View
NEMIX RAM 32GB (4X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with ASUS Motherboards
  • Brand: NEMIX RAM
  • Series: ASUS Gaming Motherboard Compatible Series Memory
  • Capacity: 32GB (4 x 8GB)
  • Speed: DDR4 2666 (PC4 21300)
  • Model #: MD21300-818K4-AS127
  •  
  • $228.99 
  • Free Shipping
Direct from NEMIX RAM Direct from NEMIX RAM
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory Compatible with Hynix HMA82GU6JJR8N-VK
Quick View
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory Compatible with Hynix HMA82GU6JJR8N-VK
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Chipset: Major OEM Samsung, Micron, Hynix
  • Buffered/Registered: Unbuffered
  • Model #: MD21300-628K01-2473
  •  
  • $111.99 
  • Free Shipping
Direct from NEMIX RAM Direct from NEMIX RAM
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory Compatible with Hynix HMA82GU6CJR8N-VK
Quick View
NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory Compatible with Hynix HMA82GU6CJR8N-VK
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Chipset: Major OEM Samsung, Micron, Hynix
  • Buffered/Registered: Unbuffered
  • Model #: MD21300-628K01-2461
  •  
  • $111.99 
  • Free Shipping
Direct from NEMIX RAM Direct from NEMIX RAM
RIMLANCE RAM 32GB (1X32GB) 1.2V DDR4 2666MHz PC4-21300 ECC SODIMM 2RX8
Quick View
RIMLANCE RAM 32GB (1X32GB) 1.2V DDR4 2666MHz PC4-21300 ECC SODIMM 2RX8
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 2Rx8
  • Model #: RES21300D8C32
  •  
  • $339.00 
  • Free Shipping
Direct from RIMLANCE Direct from RIMLANCE
4GB RAM Replacement for Kingston HX426C16FB3/4, HX426C16FB3K2/8, HX426C16FB3K4/16 | DDR4 2666MHz PC4-21300 DIMM 1Rx8 Desktop Memory
Quick View
4GB RAM Replacement for Kingston HX426C16FB3/4, HX426C16FB3K2/8, HX426C16FB3K4/16 | DDR4 2666MHz PC4-21300 DIMM 1Rx8 Desktop Memory
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Chipset: Major Brand Chips
  • Recommend Use: AMD & Intel Compatible
  • Model #: 5053772488410
  •  
  • $27.43 
Direct from A-Tech Direct from A-Tech
CMS 64GB (4X16GB) DDR4 21300 2666MHZ Non ECC DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z1 G5, Z2 Small Form Factor G4 (SFF) non ecc, Z2 Tower G4 non ec - D56
Quick View
CMS 64GB (4X16GB) DDR4 21300 2666MHZ Non ECC DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z1 G5, Z2 Small Form Factor G4 (SFF) non ecc, Z2 Tower G4 non ec - D56
  • Voltage: 1.20V
  • Compatible System: HP/Compaq Workstation Z1 G5, Z2 Small Form Factor G4 (SFF) , Z2 Tower G4 non ec
  • CAS Latency: CL19
  • Timing: 19-19-19
  • Model #: 840055540287
  •  
  • $570.00 
Supermicro Certified MEM-DR416L-HL03-ER26 | Hynix HMA82GR7AFR8N-VK | 16GB PC4-21300 DDR4 2666MHz 2Rx8 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
Quick View
  •  
  • $140.69 
Direct from A-Tech Direct from A-Tech
NEMIX RAM 16GB (2X8GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 260-PIN Non-ECC Unbuffered SODIMM Laptop PC Memory KIT
Quick View
NEMIX RAM 16GB (2X8GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V 260-PIN Non-ECC Unbuffered SODIMM Laptop PC Memory KIT
  • Brand: NEMIX RAM
  • Series: NEMIX RAM DDR4 Orignial Series 260-Pin NON-ECC Unbuffered SODIMM Memory
  • Capacity: 16GB (2 x 8GB)
  • Type: 260-Pin DDR4 SO-DIMM
  • Model #: MS21300-828K02-801
  •  
  • $114.99 
  • Free Shipping
Available Direct from NEMIX RAM Available Direct from NEMIX RAM
RIMLANCE 32GB(2X16GB) DDR4 2666MHz PC4-21300 1RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory
Quick View
RIMLANCE 32GB(2X16GB) DDR4 2666MHz PC4-21300 1RX4 1.2V 288-PIN ECC Registered RDIMM Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Type: 288-Pin DDR4 SDRAM
  • Rank: 1Rx4
  • Model #: RRD21300S4C2K32
  •  
  • $288.00 
  • Free Shipping
Direct from RIMLANCE Direct from RIMLANCE
AVARUM RAM 16GB DDR4-2666 PC4-21300 SODIMM Replacement for Samsung M471A2K43DB1-CTD / M471A2K43CB1-CTD
Quick View
AVARUM RAM 16GB DDR4-2666 PC4-21300 SODIMM Replacement for Samsung M471A2K43DB1-CTD / M471A2K43CB1-CTD
  • Voltage: 1.20V
  • CAS Latency: CL19
  • Type: 260-Pin DDR4 SO-DIMM
  • Rank: 2Rx8
  • Model #: Avarum4162666-SODIMM-6815
  •  
  • $111.50 
  • Free Shipping
A-Tech 128GB Kit (2x64GB) RAM for Apple iMac Pro (Late 2017) | DDR4 2666MHz PC4-21300 ECC RDIMM 288-Pin Memory Upgrade
Quick View
A-Tech 128GB Kit (2x64GB) RAM for Apple iMac Pro (Late 2017) | DDR4 2666MHz PC4-21300 ECC RDIMM 288-Pin Memory Upgrade
  • Voltage: 1.20V
  • Compatible System: Apple Mac Systems
  • Rank: 2S2Rx4 (4Rx4)
  • Parts: Lifetime
  • Model #: NE-MAC-0089
  •  
  • $799.98 
Direct from A-Tech Direct from A-Tech
Total Micro 16GB DDR4 2666MHz PC4-21300 Unbuffered Non-ECC 1.2
Quick View
Lenovo
Total Micro 16GB DDR4 2666MHz PC4-21300 Unbuffered Non-ECC 1.2
  • BIOS/Performance Profile: Intel XMP 2.0
  • Model #: 4X70W30751TM
64GB RAM Replacement for Kingston KSM26LQ4/64HAI, KSM26LQ4/64HAM, KSM26LQ4/64HCI, KSM26LQ4/64HCM | DDR4 2666MHz PC4-21300 ECC LRDIMM 4Rx4 Server Memory
Quick View
  •  
  • $359.99 
Direct from A-Tech Direct from A-Tech
Timetec Hynix IC 16GB DDR4 2666MHz PC4-21300 Unbuffered ECC 1.2V CL19 2Rx8 Dual Rank 288 Pin UDIMM Server Memory RAM Module Upgrade (16GB)
Quick View
  •  
  • $89.99 
  • Free Shipping
Direct from Timetec Direct from Timetec
NEMIX RAM 32GB (4X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with ASUS Motherboards
Quick View
NEMIX RAM 32GB (4X8GB) DDR4 2666MHZ PC4-21300 1Rx8 1.2V 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with ASUS Motherboards
  • Brand: NEMIX RAM
  • Series: ASUS Gaming Motherboard Compatible Series Memory
  • Capacity: 32GB (4 x 8GB)
  • Speed: DDR4 2666 (PC4 21300)
  • Model #: MD21300-818K4-AS74
  •  
  • $228.99 
  • Free Shipping
Direct from NEMIX RAM Direct from NEMIX RAM
OWC 4GB DDR4 2666MHz PC4-21300 CL19 1.2V 288-Pin Non-ECC UDIMM Memory RAM Compatible with Hp 280 G3 280 G4 280 G5 280 G6 285 G3
Quick View
OWC 4GB DDR4 2666MHz PC4-21300 CL19 1.2V 288-Pin Non-ECC UDIMM Memory RAM Compatible with Hp 280 G3 280 G4 280 G5 280 G6 285 G3
  • Voltage: 1.2V
  • Compatible System: HP 280 G3 HP 280 G4 HP 280 G5 HP 280 G6 HP 285 G3
  • CAS Latency: CL19
  • Part Number: 2U6D41R804GB
  • Model #: OWC2U6D41R804GB-AEE
  •  
  • $35.99 
Available Direct from OWC Available Direct from OWC
64GB RAM Replacement for Dell SNP4JMGMC/64G, SNP4JMGMDG/64G | DDR4 2666MHz PC4-21300 ECC LRDIMM 4Rx4 Server Memory
Quick View
64GB RAM Replacement for Dell SNP4JMGMC/64G, SNP4JMGMDG/64G | DDR4 2666MHz PC4-21300 ECC LRDIMM 4Rx4 Server Memory
  • Chipset: Major Brand Chipset
  • CAS Latency: CL19
  • Voltage: 1.20V
  • Rank: 4Rx4
  • Model #: 5053772482814
  •  
  • $359.99 
Direct from A-Tech Direct from A-Tech