• In Stock
  • Sold by Newegg
  • New
Brands
Show More
Price
Show More
Speed
Type
Capacity
Show More
CAS Latency
Voltage
ECC
Buffered/Registered
Sold by
All Top Brands
Availability
Condition
Total Capacity
Discount
Useful Links
Customer Ratings
avatar

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

Sort By:
View:
OWC 128GB (4x32GB) Replacement for Synology D4RD-2666-32G, D4ER01-32G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation FS3400, FS3410, FS3600
Quick View
  •  
  • $1,314.68 
Available Direct from OWC Available Direct from OWC
OWC 64GB Replacement for Synology D4ER01-64G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation NAS SA6400
Quick View
OWC 64GB Replacement for Synology D4ER01-64G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation NAS SA6400
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R464GB
  • Type: 288-Pin DDR4 SDRAM
  • Model #: OWC2R6D42R464GB-ZBK-SF
  •  
  • $539.99 
Available Direct from OWC Available Direct from OWC
OWC 32GB Replacement for Samsung M393A4K40BB2-CTD M393A4K40CB2-CTD M393A4K40DB2-CTD - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
OWC 32GB Replacement for Samsung M393A4K40BB2-CTD M393A4K40CB2-CTD M393A4K40DB2-CTD - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R432GB-B142-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 256GB (8x32GB) DDR4 2666MHz PC4-21300 CL19 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
Quick View
OWC 256GB (8x32GB) DDR4 2666MHz PC4-21300 CL19 2RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Multi-channel Kit: Dual Channel Kit
  • Part Number: 2R6D42R4256K
  • Model #: OWC2R6D42R4256K
  •  
  • $2,626.72 
Available Direct from OWC Available Direct from OWC
OWC 8GB Replacement for Synology D4RD-2666-8G, D4ER01-8G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation FS2017
Quick View
OWC 8GB Replacement for Synology D4RD-2666-8G, D4ER01-8G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation FS2017
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D41R408GB
  • Type: 288-Pin DDR4 SDRAM
  • Model #: OWC2R6D41R408GB-ZBF-SF
  •  
  • $89.99 
Available Direct from OWC Available Direct from OWC
OWC 8GB Replacement for Synology D4RD-2666-8G, D4ER01-8G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology RACKSTATION RS18017xs+
Quick View
OWC 8GB Replacement for Synology D4RD-2666-8G, D4ER01-8G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology RACKSTATION RS18017xs+
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D41R408GB
  • Type: 288-Pin DDR4 SDRAM
  • Model #: OWC2R6D41R408GB-ZBI-SF
  •  
  • $89.99 
Available Direct from OWC Available Direct from OWC
OWC 8GB Replacement for Synology D4RD-2666-8G, D4ER01-8G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology NAS SA3400,SA410, SA3600, SA3610
Quick View
  •  
  • $89.99 
Available Direct from OWC Available Direct from OWC
OWC 16GB Replacement for Synology D4RD-2666-16G, D4ER01-16G, DDR4 2666 MHz PC4-21300 ECC Registered RDIMM RAM Memory Compatible with Synology Flashstation FS6400, HIGH Density HD6500
Quick View
  •  
  • $169.99 
Available Direct from OWC Available Direct from OWC
OWC 32GB DDR4 2666MHz PC4-21300 CL19 4RX4 ECC Load Reduced LRDIMM 1.2V 288-pin Memory RAM Upgrade for Server
Quick View
OWC 32GB DDR4 2666MHz PC4-21300 CL19 4RX4 ECC Load Reduced LRDIMM 1.2V 288-pin Memory RAM Upgrade for Server
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2L6D44R432GB
  • Type: 288-Pin DDR4 ECC LRDIMM
  • Model #: OWC2L6D44R432GB
  •  
  • $329.99 
Available Direct from OWC Available Direct from OWC
OWC 32GB Replacement for QNAP RAM-32GDR4ECK0-RD-2666 32GB DDR4 2666 PC4-21300 CL19 2Rx4 288-pin 1.2V ECC Registered RDIMM Memory RAM Module Upgrade
Quick View
OWC 32GB Replacement for QNAP RAM-32GDR4ECK0-RD-2666 32GB DDR4 2666 PC4-21300 CL19 2Rx4 288-pin 1.2V ECC Registered RDIMM Memory RAM Module Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R432GB-B590-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 16GB Replacement for Dell A9781928 AA138422 AA174381 AA940922 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
Quick View
OWC 16GB Replacement for Dell A9781928 AA138422 AA174381 AA940922 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R816GB-B182-SF
  •  
  • $169.99 
Direct from OWC Direct from OWC
OWC 64GB Replacement for QNAP RAM-64GDR4ECS0-LR-2666 64GB DDR4 2666 PC4-21300 CL19 4Rx4 288-pin 1.2V ECC Load Reduced LRDIMM Memory RAM Module Upgrade
Quick View
OWC 64GB Replacement for QNAP RAM-64GDR4ECS0-LR-2666 64GB DDR4 2666 PC4-21300 CL19 4Rx4 288-pin 1.2V ECC Load Reduced LRDIMM Memory RAM Module Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2L6D44R464GB
  • Type: 288-Pin DDR4 ECC LRDIMM
  • Model #: OWC2L6D44R464GB-B583-SF
  •  
  • $539.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Synology D4ER02-32G - DDR4 2666 PC4-21300 CL19 2Rx4 288-pin 1.2V ECC Registered DIMM Memory RAM Module Upgrade
Quick View
OWC 32GB Replacement for Synology D4ER02-32G - DDR4 2666 PC4-21300 CL19 2Rx4 288-pin 1.2V ECC Registered DIMM Memory RAM Module Upgrade
  • Brand: OWC
  • Capacity: 32GB
  • Speed: DDR4 2666 (PC4 21300)
  • ECC: Yes
  • Model #: OWC2R6D42R432GB-C338-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Hynix HMA84GR7DJR4N-VK HMA84GR7JJR4N-VK - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
OWC 32GB Replacement for Hynix HMA84GR7DJR4N-VK HMA84GR7JJR4N-VK - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R432GB-B141-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 64GB Replacement for Supermicro MEM-DR464L-SL03-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
OWC 64GB Replacement for Supermicro MEM-DR464L-SL03-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R464GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R464GB-B181-SF
  •  
  • $539.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Dell SNPTN78YC/32G SNPTN78YC/32VXR TN78Y - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
OWC 32GB Replacement for Dell SNPTN78YC/32G SNPTN78YC/32VXR TN78Y - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R432GB-B177-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 16GB Replacement for Hynix HMA82GR7AFR8N-VK HMA82GR7CJR8N-VK HMA82GR7JJR8N-VK - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
Quick View
OWC 16GB Replacement for Hynix HMA82GR7AFR8N-VK HMA82GR7CJR8N-VK HMA82GR7JJR8N-VK - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R816GB-B144-SF
  •  
  • $169.99 
Direct from OWC Direct from OWC
OWC 16GB Replacement for QNAP RAM-16GDR4ECK0-RD-2666 RAM-16GDR4ECT0-RD-2666 16GB DDR4 2666 PC4-21300 CL19 2Rx8 288-pin 1.2V ECC Registered RDIMM Memory RAM Module Upgrade
Quick View
OWC 16GB Replacement for QNAP RAM-16GDR4ECK0-RD-2666 RAM-16GDR4ECT0-RD-2666 16GB DDR4 2666 PC4-21300 CL19 2Rx8 288-pin 1.2V ECC Registered RDIMM Memory RAM Module Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R816GB-B591-SF
  •  
  • $169.99 
Direct from OWC Direct from OWC
OWC 16GB Replacement for Supermicro MEM-DR416L-HL03-ER26 MEM-DR416L-HL06-ER26 MEM-DR416LD-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
Quick View
  •  
  • $169.99 
Direct from OWC Direct from OWC
OWC 16GB Replacement for Dell SNPDFK3YC/16G SNPPWR5TC/16G SNPPWR5TC/16VXR SNPVM51CC/16G - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
Quick View
OWC 16GB Replacement for Dell SNPDFK3YC/16G SNPPWR5TC/16G SNPPWR5TC/16VXR SNPVM51CC/16G - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R816GB-B185-SF
  •  
  • $169.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Hynix HMA84GR7AFR4N-VK HMA84GR7CJR4N-VK - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
OWC 32GB Replacement for Hynix HMA84GR7AFR4N-VK HMA84GR7CJR4N-VK - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R432GB-B140-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 16GB Replacement for Samsung M393A2K43BB1-CTD M393A2K43CB2-CTD M393A2K43DB2-CTD - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
Quick View
OWC 16GB Replacement for Samsung M393A2K43BB1-CTD M393A2K43CB2-CTD M393A2K43DB2-CTD - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R816GB-B143-SF
  •  
  • $169.99 
Direct from OWC Direct from OWC
OWC 16GB Replacement for Supermicro MEM-DR416L-CL06-ER26 MEM-DR416L-CL07-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
Quick View
OWC 16GB Replacement for Supermicro MEM-DR416L-CL06-ER26 MEM-DR416L-CL07-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx8 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R816GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R816GB-B183-SF
  •  
  • $169.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Supermicro MEM-DR432L-CL01-ER26 MEM-DR432L-CL02-ER26 MEM-DR432L-CL03-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Supermicro MEM-DR432L-CL05-ER26 MEM-DR432L-HL01-ER26 MEM-DR432L-HL03-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Supermicro MEM-DR432L-SL04-ER26 MEM-DR432LC-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
OWC 32GB Replacement for Supermicro MEM-DR432L-SL04-ER26 MEM-DR432LC-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R432GB-B179-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 32GB Replacement for Supermicro MEM-DR432L-SL02-ER26 MEM-DR432L-SL03-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
Quick View
OWC 32GB Replacement for Supermicro MEM-DR432L-SL02-ER26 MEM-DR432L-SL03-ER26 - DDR4 2666MHz PC4-21300 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6D42R432GB
  • Type: 288-Pin DDR4 ECC RDIMM
  • Model #: OWC2R6D42R432GB-B176-SF
  •  
  • $329.99 
Direct from OWC Direct from OWC
OWC 64GB Replacement for Fujitsu S26361-F4026-L764 S26361-F4026-L364 S26361-F4026-E764 S26361-F4026-E364 S26361-F4026-E364 - DDR4 2666 PC4-21300 CL19 4Rx4 288-pin 1.2V ECC RDIMM Memory RAM Upgrade
Quick View
  •  
  • $539.99 
Direct from OWC Direct from OWC
OWC 32GB DDR4 2666 PC4-21300 CL19 2Rx4 VLP 288-pin 1.2V ECC Registered DIMM Memory RAM Module Upgrade for Select Workstations, Servers, and NAS Systems
Quick View
OWC 32GB DDR4 2666 PC4-21300 CL19 2Rx4 VLP 288-pin 1.2V ECC Registered DIMM Memory RAM Module Upgrade for Select Workstations, Servers, and NAS Systems
  • CAS Latency: CL19
  • Voltage: 1.2V
  • Part Number: 2R6V42R432GB
  • Type: 288-Pin DDR4 ECC VLP RDIMM
  • Model #: OWC2R6V42R432GB-SF
  •  
  • $399.99 
Direct from OWC Direct from OWC
OWC 128GB Replacement for Cisco UCS-MR-128G8RS-H Dataram DRC2666TR/128GB DRV2666R/128GB S26361-F4026-E728 - DDR4 2666 PC4-21300 CL19 8Rx4 288-pin 1.2V ECC Registered RDIMM Memory RAM
Quick View
  •  
  • $949.99 
Direct from OWC Direct from OWC
OWC 128GB Replacement for Fujitsu S26361-F4026-E328 S26361-F4026-E328 S26361-F4026-E728 S26361-F4026-L328 S26361-F4026-L728 - DDR4 2666 PC4-21300 CL19 8Rx4 288-pin 1.2V ECC RDIMM Memory RAM Upgrade
Quick View
  •  
  • $949.99 
Direct from OWC Direct from OWC
OWC 128GB Replacement for Fujitsu S26361-F4026-L728 Hynix HMABAGR7A4R4N-VN Lenovo 7X77A01307 - DDR4 2666 PC4-21300 CL19 8Rx4 288-pin 1.2V ECC Registered RDIMM Memory RAM Module Upgrade
Quick View
  •  
  • $949.99 
Direct from OWC Direct from OWC
Hynix HMA82GR7AFR8N-VK 16GB DDR4-2666 ECC REG DIMM
Quick View
  •  
  • $226.99 
  • $5.99 Shipping