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Product number
  • 809988
  • 824707
  • 827704
  • 809998
  • 841543
Manufacturer code
  • RS2418+
  • RS1619xs+
  • DS2419+
  • RS2418RP+
  • RS820RP+
Brand
  • Synology
  • Synology
  • Synology
  • Synology
  • Synology
Warranty
  • 5 years
  • 5 years
  • 3 years
  • 5 years
  • 3 years
Warranty type
  • Carry-in warranty
  • Carry-in warranty
  • Carry-in warranty
  • Carry-in warranty
  • Carry-in warranty
Old product returned for free
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes

Number of hard drive bays
  • 12
  • 4
  • 12
  • 12
  • 4
Internal RAM
  • 4 GB
  • 8 GB
  • 4 GB
  • 4 GB
  • 2 GB
Total number of RAM slots
  • 4
  • 2
  • 2
  • 4
  • 1
Integrated hard drive
  • No
  • No
  • No
  • No
  • No
Suitable for hard drive size
  • 3.5-inch HDD
  • 2,5 inch HDD, 2,5 inch SSD, 3.5-inch HDD
  • 2,5 inch HDD, 2,5 inch SSD, 3.5-inch HDD
  • 3.5-inch HDD
  • 2,5 inch HDD, 2,5 inch SSD, 3.5-inch HDD
Cache memory
  • 8 MB
  • 6 MB
  • 0 MB
  • 8 MB
  • 8 MB
SATA connector type
  • S-ATA, S-ATA (II), S-ATA (III)
  • S-ATA (III)
  • S-ATA (III)
  • S-ATA, S-ATA (II), S-ATA (III)
  • S-ATA (III)
RAID
  • JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, RAID-2, Synology Hybrid RAID
  • RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, Synology Hybrid RAID
  • JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, Synology Hybrid RAID
  • JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, RAID-2, Synology Hybrid RAID
  • RAID 0, RAID 1, RAID 10, RAID 5, RAID 5+spare, RAID 6, RAID-10+spare, RAID-6 + spare, Synology Hybrid RAID

NAS functions
  • Backup server, Download server, FTP server, Photo server, Surveillance station, VPN server, Web server
  • Backup server, Download server, FTP server, Media server, Photo server, Surveillance station, VPN server, Web server
  • Backup server, Download server, FTP server, Mail server, Media server, Photo server, Surveillance station, VPN server, Web server, iTunes server
  • Backup server, Download server, FTP server, Photo server, Surveillance station, VPN server, Web server
  • Backup server, Database server, FTP server, Mail server, Media server, Photo server, Surveillance station, VPN server, Web server, iTunes server
NAS application center
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
DLNA
  • No
  • Yes
  • Yes
  • No
  • No
UPnP AV support
  • No
  • No
  • No
  • No
  • No
FTP server
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
On/off switch
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Kensington lock
  • No
  • No
  • No
  • No
  • No
Apple Time Machine support
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Chromecast support
  • No
  • No
  • Yes
  • No
  • Yes
Maximum number of simultaneous users
  • More than 10
  • More than 10
  • More than 10
  • More than 10
  • More than 10
Number of IP camera licenses included
  • None
  • 2
  • 2
  • None
  • None
Plex support
  • No
  • No
  • Yes
  • No
  • Yes
Automatic switch on/off
  • No
  • No
  • No
  • No
  • No
Suitable for IFTTT
  • No
  • No
  • No
  • No
  • No
Recommended for use
  • Making a backup, Personal cloud, Save photos and videos
  • Making a backup, Personal cloud, Save photos and videos
  • Making a backup, Media streaming, Personal cloud, Save photos and videos
  • Personal cloud, Save photos and videos
  • Business use, Making a backup, Media streaming, Personal cloud, Save photos and videos, Storing games
Plex support type
  • Full HD (1080p), HD Ready (720p), SD (480p)
  • HD Ready (720p)

Best tested
  • No
  • No
  • No
  • No
  • No

LACP Link aggregation
  • Yes
  • Yes
  • No
  • Yes
  • Yes
iSCSI support
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Thunderbolt connector
  • No
  • No
  • No
  • No
  • No
Number of female standard USB-A ports
  • 2
  • 2
  • 2
  • 2
  • 2
Female standard USB-A port version
  • 3.0
  • 3.0
  • 3.0
  • 3.0
  • 3.0
Connection type
  • Wired
  • Wired
  • Wired
  • Wired
  • Wired
Ethernet speed
  • Gigabit Ethernet (1000Mbps)
  • Gigabit Ethernet (1000Mbps)
  • Gigabit Ethernet (1000Mbps)
  • Gigabit Ethernet (1000Mbps)
  • Gigabit Ethernet (1000Mbps)
Number of ethernet ports
  • 4
  • 4
  • 4
  • 4
  • 4
Number of female standard VGA ports
  • 1

Processor
  • Intel Atom
  • Intel Xeon
  • Intel Atom
  • Intel Atom
  • Intel Atom
Processor brand
  • Intel
  • Intel
  • Intel
  • Intel
  • Intel
Processor family
  • Atom
  • Xeon
  • Atom
  • Atom
  • Atom
Processor code name
  • Atom
  • Broadwell
  • Denverton
  • Atom
  • Atom
Processor cores
  • Quad-Core (4)
  • Quad-Core (4)
  • Quad-Core (4)
  • Quad-Core (4)
  • Quad-Core (4)
Clock speed
  • 2,4 GHz
  • 2,2 GHz
  • 2,1 GHz
  • 2,4 GHz
  • 2,1 GHz
Turbo speed
  • 2,7 GHz
  • 2,7 GHz
  • 2,1 GHz
  • 2,7 GHz
  • 2,1 GHz

Depth
  • 69,6 cm
  • 48,3 cm
  • 34 cm
  • 72,4 cm
  • 48,36 cm
Width
  • 48,2 cm
  • 43,05 cm
  • 30 cm
  • 48,2 cm
  • 43,05 cm
Height
  • 8,8 cm
  • 4,4 cm
  • 27 cm
  • 8,8 cm
  • 4,4 cm
Type NAS
  • Rackmount
  • Rackmount
  • Upright
  • Rackmount
  • Rackmount
Color
  • Black
  • Black
  • Black
  • Black
  • Black
Weight
  • 13,22 kg
  • 8,16 kg
  • 9,5 kg
  • 13,85 kg
  • 7,9 kg
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