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Synology DiskStation DS1520+ vs. Synology DiskStation DS920+ + 8

Synology DiskStation DS1520+

Synology DiskStation DS1520+

£654.99

Free delivery
Synology DiskStation DS920+

Synology DiskStation DS920+

£509.49

Free delivery
Synology DiskStation DS220+

Synology DiskStation DS220+

£299.99

Free delivery
Synology DS720+

Synology DS720+

£391.49

Free delivery
WD My Cloud Home 4TB

WD My Cloud Home 4TB

£107.99

£143.49 Incl. delivery
Synology DS118

Synology DS118

£152.99

Free delivery
Synology DiskStation DS220j

Synology DiskStation DS220j

£148.97

Free delivery
QNAP TS-453D-4G

QNAP TS-453D-4G

£499.99

Free delivery
WD My Cloud EX2 Ultra 4TB

WD My Cloud EX2 Ultra 4TB

£65.17

£261.07 Incl. delivery
QNAP TVS-672XT-i3-8G

QNAP TVS-672XT-i3-8G

£1,719.49

Free delivery
Noise level
20.8 dB
19.8 dB
18.4 dB
16.7 dB
18.2 dB
21 dB
Client services
BitTorrent
BitTorrent
BitTorrent
BitTorrent
BitTorrent
BitTorrent
Ethernet connection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Number of Ethernet ports (RJ-45)
4 ​
2 ​
2 ​
2 ​
1 ​
1 ​
1 ​
2 ​
1 ​
3 ​
Number of SFP+ ports
0 ​
0 ​
0 ​
0 ​
0 ​
Speed
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
10/100/1000 (Gigabit) Mbit/s
Server services/protocols
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI, SFTP
FTP, NFS, AFP, CIFS/SMB, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
FTP, NFS, AFP, CIFS/SMB, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI, SFTP
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
Wireless network (Wi-Fi)
No
No
No
No
No
No
No
No
No
ActiveDirectory
Yes
No
Yes
Yes
ECC
No
No
No
Yes
Fully supported file system (external)
HFS+, NTFS, FAT32, ext4, ext3, BTRFS
HFS+, NTFS, FAT32, ext4, ext3, BTRFS
ext4, ext3, BTRFS
HFS+, NTFS, FAT32, ext4, ext3
HFS+, NTFS, FAT32, ext4, ext3
HFS+, NTFS, FAT32, ext4, ext3
HFS+, NTFS, FAT32, ext4, ext3, ext2
Fully supported file system (internal)
ext4, BTRFS
ext4, BTRFS
ext4, BTRFS
NTFS, ext4, HFS+, BTRFS
ext4
ext4
ext4
ext4
x86-compatible processor
Yes
Yes
Yes
Yes
Yes
Yes
No
IDE/PATA
No
No
No
No
No
No
No
SAS
No
No
No
No
No
No
No
SATA (Serial ATA)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SATA interface
S-ATA/600
S-ATA/600
S-ATA/600
S-ATA/600
S-ATA/600
S-ATA/600
S-ATA/600
S-ATA/600
S-ATA/600
SCSI
No
No
No
No
No
Yes
Yes
Data link protocols
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
2.5 Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet, 10 Gigabit Ethernet
eSATA
Yes
Yes
No
Yes
No
No
No
No
No
Firewire
No
No
No
No
No
No
No
No
No
HDMI
No
No
No
No
No
No
No
Yes
No
Yes
Number of HDMI outputs
1 ​
1 ​
Optical fiber
no
no
no
no
no
no
no
no
no
Thunderbolt
No
No
No
No
No
No
No
No
No
Yes
USB
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
USB (total)
2 ​
2 ​
2 ​
1 ​
2 ​
2 ​
2 ​
USB 2.0
0 ​
0 ​
0 ​
0 ​
0 ​
3 ​
0 ​
USB 3 Gen 1 (5Gbps)
2 ​
2 ​
2 ​
2 ​
1 ​
2 ​
2 ​
2 ​
2 ​
1 ​
USB 3 Gen 2 (10Gbps)
0 ​
0 ​
0 ​
0 ​
0 ​
2 ​
USB 3 Gen 2x2 (20Gbps)
0 ​
0 ​
0 ​
0 ​
0 ​
0 ​
Dimensions (WxHxD)
Depth
223 mm
223 mm
140 mm
224 mm
226 mm
154.94 mm
319.8 mm
Height
166 mm
199 mm
165 mm
166 mm
175.5 mm
166 mm
165 mm
168 mm
171.45 mm
188.2 mm
Width
230 mm
166 mm
108 mm
106 mm
53 mm
71 mm
100 mm
170 mm
99.06 mm
280 mm
Product weight
2260 g
2240 g
1300 g
1510 g
1050 g
700 g
880 g
2370 g
1600 g
6550 g
Designed for rack mounting
No
No
No
No
No
No
No
No
No
Features
DLNA, Supports Hot-swap
DLNA, Supports Hot-swap
Supports Hot-swap
Supports Hot-swap
DLNA
DLNA, Supports Hot-swap
DLNA, Supports Hot-swap
DLNA, Display
Cooling
Active
Active
Active
Active
Passive
Active
Active
Active
Active
RAID
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Type of RAID
RAID 0, RAID 1, RAID 5, RAID 10, JBOD, RAID 6
RAID 0, RAID 1, RAID 5, JBOD, RAID 6
RAID 0, RAID 1, JBOD
RAID 0, RAID 1, JBOD
RAID 0, RAID 1, JBOD
RAID 0, RAID 1, RAID 5, RAID 10, JBOD, RAID 6
RAID 0, RAID 1, JBOD
RAID 0, RAID 1, RAID 50, JBOD
Wake on LAN
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
RAM
8192 MB
4096 MB
2048 MB
2048 MB
1024 MB
1024 MB
512 MB
4096 MB
1024 MB
8192 MB
Operational Power Consumption (min-max)
15.51 - 36.67 W
9.69 - 32.17 W
14.69 W
16.44 W
9.4 W
12.46 W
25.98 W
250 W
Power consumption (standby)
15.51 W
4.22 W
5.06 W
Processor core type
4 (Quad) Core
4 (Quad) Core
2 (Dual) Core
4 (Quad) Core
4 (Quad) Core
4 (Quad) Core
4 (Quad) Core
4 (Quad) Core
2 (Dual) Core
4 (Quad) Core
Processor model
Intel Celeron J4125
Intel Celeron J4125
Intel Celeron J4025
Intel Celeron J4125
Realtek RTD1296
Realtek RTD1296
Intel Celeron J4025
Marvell Armada 385 88F6820
Intel Core i3 8100T
Processor speed
2 GHz
2 GHz
2 GHz
2 GHz
1.4 GHz
1.4 GHz
1.4 GHz
2 GHz
1.3 GHz
3.1 GHz
Operating system
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
QNAP Turbo NAS System
Built-in hard drive
No
No
No
No
Yes
No
No
No
Yes
No
Quantity
1 ​
2 ​
Storage capacity
4 TB
4 TB
Price/TB
27 £/TB
16.25 £/TB
Form factor
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
3.5 inch, 2.5 inch
Internal transfer rate
112 MB/s
Number of hard drive slots
5 ​
4 ​
2 ​
2 ​
1 ​
1 ​
2 ​
4 ​
2 ​
6 ​