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

Quick View
SAMSUNG 32GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model M393A4K40CB2-CTD
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx4
- Model #: M393A4K40CB2-CTD
- $259.37 –
- More options from $259.37 - $349.00

Quick View
16GB RAM Replacement for Micron MTA18ADF2G72PZ-2G6D1, MTA18ADF2G72PZ-2G6H1, MTA18ASF2G72PZ-2G6D1QG, MTA18ASF2G72PZ-2G6E1, MTA18ASF2G72PZ-2G6J1 | DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx4 Server Memory
- Chipset: Micron Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 1Rx4
- Model #: NE-PNR-2050
- $161.16 –

Quick View
32GB RAM Replacement for Samsung M393A4K40BB2-CTD, M393A4K40CB2-CTD, M393A4K40DB2-CTD | DDR4 2666MHz PC4-21300 ECC RDIMM 2Rx4 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2Rx4
- Model #: 5053772477551
- $220.08 –

Quick View
Supermicro (MTA36ASF4G72PZ-2G6E1) 32GB SDRAM ECC Registered DDR4 2666 (PC4 21300) Server Memory Model MEM-DR432L-CL03-ER26
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx4
- Model #: MEM-DR432L-CL03-ER26
- $212.21 –

Quick View
Micron 32GB ECC Registered DDR4 2666 (PC4 21300) Server Memory Model MTA36ASF4G72PZ-2G6E1
- CAS Latency: CL19
- Timing: 19-19-19
- Type: 288-Pin DDR4 SDRAM
- Rank: Dual-rank
- Model #: MTA36ASF4G72PZ-2G6E1
- $212.21 –

Quick View
A-Tech 32GB Kit (2x16GB) DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Modules for Microserver, Workstation, and Networking Platforms
- Model #: 9435761160884
- $533.99 –
- $5.99 Shipping

Quick View
8GB RAM Replacement for Samsung M393A1G40EB2-CTD | DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx4 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 1Rx4
- Model #: 5053772479807
- $54.99 –

Quick View
8GB RAM Replacement for Crucial CT8G4RFS8266 | DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx8 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 1Rx8
- Model #: NE-PNR-1634
- $64.34 –

Quick View
Rimlance 128GB (2X64GB) 1.2V DDR4 2666MHZ PC4-21300 LRDIMM 4RX4
- Chipset: Major Brand Chipset
- Type: 288-Pin DDR4 SDRAM
- Rank: 4Rx4
- Model #: RLR21300Q4C2K128
- $770.00 –
- Free Shipping

Quick View
Supermicro Certified MEM-DR412LF-LR26 | Micron MTA144ASQ16G72LSZ-2S6E1 | 128GB PC4-21300 DDR4 2666MHz 2S4Rx4 (8Rx4) 3DS/TSV Octal Rank ECC LRDIMM Load Reduced 288-Pin Server Memory RAM
- Chipset: Micron Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2S4Rx4 (8Rx4)
- Model #: MEM-DR412LF-LR26
- $819.82 –

Quick View
Micron 32GB ECC Unbuffered DDR4 2666 (PC4 21300) Server Memory Model MTA18ADF4G72AZ-2G6B2
- Type: 288-Pin DDR4 SDRAM
- Rank: Dual-rank
- Model #: MTA18ADF4G72AZ-2G6B2
- $399.00 –

Quick View
A-Tech 16GB (2x8GB) 1Rx8 PC4-21300 / PC4-21300E DDR4 2666 MHz ECC UDIMM 1.2V ECC Unbuffered DIMM 288-Pin Single Rank x8 Server & Workstation RAM Memory Upgrade Kit
- CAS Latency: CL19
- Rank: 1Rx8
- Model #: AT8G2D4D2666US8N12V
- $239.98 –
- Free Shipping

Quick View
TN78Y - Dell Compatible 32GB PC4-21300 DDR4-2666MHz 2Rx4 1.2V ECC Registered RDIMM
- Chipset: Major Brand Chipset
- CAS Latency: CL15
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: TN78Y
- $199.45 –

Quick View
32GB RAM Replacement for Hynix HMA84GR7AFR4N-VK, HMA84GR7CJR4N-VK, HMA84GR7DJR4N-VK, HMA84GR7JJR4N-VK | DDR4 2666MHz PC4-21300 ECC RDIMM 2Rx4 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2Rx4
- Model #: 5053772477100
- $220.08 –

Quick View
Samsung 16GB ECC DDR4 2666MHz PC4-21300 1.2V 2Rx8 288-Pin ECC UDIMM Server RAM Memory Module M391A2K43BB1-CTD
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 2Rx8
- Model #: M391A2K43BB1-CTD-SM
- $179.99 –

Quick View
AA335287 - Dell Compatible 16GB PC4-21300 DDR4-2666MHz 2Rx8 1.2V Non-ECC SODIMM
- Chipset: Major Brand Chipset
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 1Rx8
- Model #: AA335287
- $433.00
- $89.45 –
- Save: $343.55 (79%)

Quick View
NEMIX RAM 32GB (4 x 8GB) DDR4 2666MHz PC4-21300 1Rx8 1.2V 288-PIN ECC UDIMM Unbuffered Memory Kit
- Brand: NEMIX RAM
- Capacity: 32GB (4 x 8GB)
- Speed: DDR4 2666 (PC4 21300)
- ECC: Yes
- Model #: ME21300-818K4-SM-SYS-5019C-MR
- $279.49 –
- Free Shipping

Quick View
A-Tech 32GB (4x8GB) 2Rx8 PC4-21300 / PC4-21300E DDR4 2666 MHz ECC UDIMM 1.2V ECC Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
- CAS Latency: CL19
- Rank: 2Rx8
- Model #: AT8G4D4D2666UD8N12V
- $479.96 –
- Free Shipping

Quick View
A-Tech 512GB (8x64GB) 2S2Rx4 (4Rx4 3DS) PC4-21300R DDR4 2666 MHz ECC RDIMM Registered DIMM 288-Pin Quad Rank x4 3DS/TSV Server & Workstation RAM Memory Upgrade Kit
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2S2Rx4 (4Rx4 3DS/TSV)
- Model #: AT64G8D4D2666RQ4N12V
- $3,537.14 –

Quick View
16GB RAM Replacement for Synology D4EC-2666-16G | DDR4 2666MHz PC4-21300 ECC UDIMM 2Rx8 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2Rx8
- Model #: 5053772488977
- $209.99 –

Quick View
A-Tech 8GB 2Rx8 PC4-21300 / PC4-21300E DDR4 2666 MHz ECC UDIMM 1.2V ECC Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Module
- CAS Latency: CL19
- Rank: 2Rx8
- Model #: AT8G1D4D2666UD8N12V
- $119.99 –
- Free Shipping

Quick View
Kingston 8GB ECC DDR4 2666 (PC4 21300) Server Memory Model KSM26ES8/8ME
- CAS Latency: CL19
- Timing: 19-19-19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: KSM26ES8/8ME
- $99.00 –

Quick View
A-Tech 64GB (8x8GB) 2Rx8 PC4-21300 / PC4-21300E DDR4 2666 MHz ECC UDIMM 1.2V ECC Unbuffered DIMM 288-Pin Dual Rank x8 Server & Workstation RAM Memory Upgrade Kit
- CAS Latency: CL19
- Rank: 2Rx8
- Model #: AT8G8D4D2666UD8N12V
- $959.92 –

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
HYXPX - Dell Compatible 8GB PC4-21300 DDR4-2666MHz 1Rx8 1.2v Non-ECC SODIMM
- Chipset: Major Brand Chipset
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Rank: 1Rx8
- Model #: HYXPX
- $89.45 –

Quick View
Supermicro Certified MEM-DR480L-HL01-EU26 | Hynix HMA81GU7CJR8N-VK | 8GB PC4-21300 DDR4 2666MHz 1Rx8 Single Rank ECC Unbuffered UDIMM 288-Pin Server Memory RAM
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 1Rx8
- Model #: MEM-DR480L-HL01-EU26
- $119.99 –
- Free Shipping

Quick View
NEMIX RAM 16GB (2 x 8GB) DDR4 2666MHz PC4-21300 1Rx8 1.2V 288-PIN ECC UDIMM Unbuffered Memory Kit
- Brand: NEMIX RAM
- Capacity: 16GB (2 x 8GB)
- Speed: DDR4 2666 (PC4 21300)
- ECC: Yes
- Model #: ME21300-818K2-SM-SYS-5019C-M
- $139.89 –
- Free Shipping

Quick View
32GB RAM Replacement for Hynix HMA84GL7AFR4N-VK | DDR4 2666MHz PC4-21300 ECC LRDIMM 2Rx4 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2Rx4
- Model #: 5053772479753
- $267.55 –

Quick View
32GB RAM Replacement for Micron MTA36ASF4G72LZ-2G6, MTA36ASF4G72LZ-2G6D1 | DDR4 2666MHz PC4-21300 ECC LRDIMM 2Rx4 Server Memory
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2Rx4
- Model #: 5053772478060
- $267.55 –

Quick View
NEMIX RAM 128GB (4 x 32GB) DDR4 2666MHz PC4-21300 2Rx8 1.2V 288-PIN ECC UDIMM Unbuffered Memory Kit
- Brand: NEMIX RAM
- Capacity: 128GB (4 x 32GB)
- Speed: DDR4 2666 (PC4 21300)
- ECC: Yes
- Model #: ME21300-328K4-SM-SYS-5019C-MR
- $1,149.99 –
- Free Shipping

Quick View
SAMSUNG 32GB DDR4 SDRAM ECC/Reg 2666MHz PC4-21300 Server Memory BULK
- CAS Latency: CL19
- Voltage: 1.20V
- Type: 288-Pin DDR4 SDRAM
- Model #: SA#M393A4K40CB2-CTD
- $259.37 –
- More options from $259.37 - $262.49

Quick View
Samsung Memory Bundle with 256GB (8 x 32GB) DDR4 PC4-21300 2666MHz RDIMM (8 x M393A4K40CB2-CTD) Registered Server Memory
- Model #: 840104378854
- $1,599.00 –
- More options from $1,599.00 - $2,074.92
- Free Shipping

Quick View
NEMIX RAM 16GB (2 x 8GB) DDR4 2666MHz PC4-21300 1Rx8 1.2V 288-PIN ECC UDIMM Unbuffered Memory Kit
- Brand: NEMIX RAM
- Capacity: 16GB (2 x 8GB)
- Speed: DDR4 2666 (PC4 21300)
- ECC: Yes
- Model #: ME21300-818K2-SM-SYS-5019C-MR
- $139.89 –
- Free Shipping

Quick View
Supermicro Certified MEM-DR480L-HL02-ER26 | Hynix HMA81GR7AFR8N-VK | 8GB PC4-21300 DDR4 2666MHz 1Rx8 Single Rank ECC RDIMM Registered 288-Pin Server Memory RAM
- Chipset: Major Brand Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 1Rx8
- Model #: MEM-DR480L-HL02-ER26
- $64.34 –

Quick View
Supermicro Certified MEM-DR432LC-ER26 | Micron MTA36ASF4G72PZ-2G6E1 | 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM
- Chipset: Micron Chipset
- CAS Latency: CL19
- Voltage: 1.20V
- Rank: 2Rx4
- Model #: MEM-DR432LC-ER26 MTA36ASF4G72PZ-2G6E1
- $212.21 –



