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Impartial price comparison

QNAP TVS-873-16G vs. Synology DiskStation DS220j + 9

QNAP TVS-873-16G

QNAP TVS-873-16G

£1,876.45

£1,883.64 Incl. delivery
Synology DiskStation DS220j

Synology DiskStation DS220j

£151.38

£154.87 Incl. delivery
Synology DiskStation DS220+

Synology DiskStation DS220+

£291.88

£292.87 Incl. delivery
Synology DiskStation DS920+

Synology DiskStation DS920+

£482.99

Free delivery
WD My Cloud Home 4TB

WD My Cloud Home 4TB

£99.99

£173.93 Incl. delivery
Synology DiskStation DS218

Synology DiskStation DS218

£231.95

£234.97 Incl. delivery
WD My Cloud EX2 Ultra 4TB

WD My Cloud EX2 Ultra 4TB

£199.99

£271.00 Incl. delivery
Synology DS720+

Synology DS720+

£386.99

Free delivery
Synology DiskStation DS1621+

Synology DiskStation DS1621+

£770.39

£775.78 Incl. delivery
QNAP TS-431K

QNAP TS-431K

£279.99

Free delivery
QNAP TS-230

QNAP TS-230

£159.00

£165.99 Incl. delivery
Noise level
18.2 dB
19.8 dB
19.3 dB
18.4 dB
25.2 dB
21.3 dB
Client services
BitTorrent
BitTorrent
BitTorrent
BitTorrent
Ethernet connection
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Number of Ethernet ports (RJ-45)
4 ​
1 ​
2 ​
2 ​
1 ​
1 ​
1 ​
2 ​
4 ​
2 ​
1 ​
Number of SFP+ ports
0 ​
0 ​
0 ​
0 ​
0 ​
0 ​
1 ​
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
10/100/1000 (Gigabit) Mbit/s
Server services/protocols
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
FTP, NFS, AFP, CIFS/SMB, iSCSI
FTP, NFS, AFP, CIFS/SMB, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI, SFTP
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI, SFTP
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI
FTP, NFS, AFP, CIFS/SMB, HTTP, iSCSI, SFTP
CIFS/SMB
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
Yes
Fully supported file system (external)
HFS+, NTFS, FAT32, ext4, ext3
HFS+, NTFS, FAT32, ext4, ext3, BTRFS
HFS+, NTFS, FAT32, ext4, ext3, BTRFS
HFS+, NTFS, FAT32, ext4, ext3, ext2
ext4, ext3, BTRFS
HFS+, NTFS, FAT32, ext4, ext3, BTRFS
HFS+, NTFS, FAT32, ext4, ext3
Fully supported file system (internal)
ext4
ext4, BTRFS
ext4, BTRFS
ext4, BTRFS
ext4
NTFS, ext4, HFS+, BTRFS
ext4, BTRFS
ext4
x86-compatible processor
Yes
Yes
Yes
No
No
Yes
IDE/PATA
No
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
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
S-ATA/600
SCSI
No
No
No
Yes
No
No
No
Data link protocols
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
Gigabit Ethernet
eSATA
No
No
Yes
No
No
No
Yes
Yes
No
No
Firewire
No
No
No
No
No
No
No
No
No
No
HDMI
Yes
No
No
No
No
No
No
No
No
No
No
Number of HDMI outputs
2 ​
Optical fiber
no
no
no
no
no
no
no
no
no
no
Thunderbolt
No
No
No
No
No
No
No
No
No
No
USB
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
USB (total)
2 ​
2 ​
1 ​
3 ​
2 ​
2 ​
3 ​
3 ​
USB 2.0
0 ​
0 ​
0 ​
1 ​
0 ​
0 ​
0 ​
1 ​
USB 3.1 Gen 1 (5Gbps)
4 ​
2 ​
2 ​
2 ​
1 ​
2 ​
2 ​
2 ​
3 ​
3 ​
2 ​
USB 3.2 Gen 2 (10Gbps)
2 ​
0 ​
0 ​
0 ​
0 ​
0 ​
0 ​
USB 3.2 Gen 2x2 (20Gbps)
0 ​
0 ​
0 ​
0 ​
0 ​
0 ​
0 ​
Dimensions (WxHxD)
Depth
279.6 mm
223 mm
140 mm
233 mm
154.94 mm
243 mm
219 mm
Height
188.2 mm
165 mm
165 mm
166 mm
175.5 mm
165 mm
171.45 mm
166 mm
166 mm
161 mm
188.64 mm
Width
329.3 mm
100 mm
108 mm
199 mm
53 mm
108 mm
99.06 mm
106 mm
282 mm
160 mm
90.18 mm
Product weight
6.52 kg
0.88 kg
1.3 kg
2.24 kg
1.05 kg
1.3 kg
1.6 kg
1.51 kg
5.1 kg
3 kg
1.11 kg
Designed for rack mounting
No
No
No
No
No
No
No
No
No
Features
Display
Supports Hot-swap
DLNA, Supports Hot-swap
DLNA
DLNA, Supports Hot-swap
Supports Hot-swap
Supports Hot-swap
Supports Hot-swap
Cooling
Active
Active
Active
Passive
Active
Active
Active
Active
Active
Active
RAID
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Type of RAID
RAID 0, RAID 1, JBOD
RAID 0, RAID 1, JBOD
RAID 0, RAID 1, JBOD
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, RAID 5, RAID 10, JBOD, RAID 6
RAID 0, RAID 1, JBOD
Wake on LAN
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
RAM
16384 MB
512 MB
2048 MB
4096 MB
1024 MB
2048 MB
1024 MB
2048 MB
4096 MB
1024 MB
2048 MB
Operational Power Consumption (min-max)
240 W
12.46 W
14.69 W
9.69 - 32.17 W
5.78 - 14.99 W
16.44 W
25.27 - 51.22 W
11.93 - 26.57 W
12.28 W
Power consumption (standby)
5.06 W
4.48 W
Processor core type
4 (Quad) Core
4 (Quad) Core
2 (Dual) Core
4 (Quad) Core
4 (Quad) Core
4 (Quad) Core
2 (Dual) Core
4 (Quad) Core
4 (Quad) Core
4 (Quad) Core
4 (Quad) Core
Processor model
Realtek RTD1296
Intel Celeron J4025
Intel Celeron J4125
Realtek RTD1296
Marvell Armada 385 88F6820
Intel Celeron J4125
Other / Unspecified
Other / Unspecified
Realtek RTD1296
Processor speed
2.1 GHz
1.4 GHz
2 GHz
2 GHz
1.4 GHz
1.4 GHz
1.3 GHz
2 GHz
2.2 GHz
1.7 GHz
1.4 GHz
Operating system
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
DiskStation Manager (DSM)
Built-in hard drive
No
No
No
No
Yes
No
Yes
No
No
No
No
Quantity
1 ​
2 ​
Storage capacity
4 TB
4 TB
Price/TB
25 £/TB
50 £/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
3.5 inch, 2.5 inch
Internal transfer rate
112 MB/s
Number of hard drive slots
8 ​
2 ​
2 ​
4 ​
1 ​
2 ​
2 ​
2 ​
6 ​
4 ​
2 ​