QNAP TS-420 2x2TB vs QNAP TS-420 4x1TB

Comparison of TS-420 2x2TB, TS-420 4x1TB

65 specifications	A QNAP TS-420 2x2TBView product	B QNAP TS-420 4x1TBView product
Storage2 differ
Total installed storage capacity	4 TB	4 TB
Number of storage drives installedDiffers	2	4
Number of storage drives supported	4	4
Storage drive capacityDiffers	2 TB	1 TB
Storage drive interface	Serial ATA, Serial ATA II	Serial ATA, Serial ATA II
Storage drive size	2.5/3.5"	2.5/3.5"
Maximum supported storage capacity	12 TB	12 TB
RAID support	Yes	Yes
RAID levels	0, 1, 5, 5+0, 5+1, 6, 10, JBOD	0, 1, 5, 5+0, 5+1, 6, 10, JBOD
Supported file systems	ext3, ext4, FAT32, HFS+, NTFS	ext3, ext4, FAT32, HFS+, NTFS
Processoridentical
Processor family	Marvell	Marvell
Processor frequency	1.6 GHz	1.6 GHz
Number of processors installed	1	1
Memoryidentical
Internal memory	0.5 GB	0.5 GB
Internal memory type	DDR3	DDR3
Flash memory	16 MB	16 MB
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Wi-Fi	No	No
DHCP server	Yes	Yes
Jumbo frames support	Yes	Yes
iSCSI support	Yes	Yes
Wake-on-LAN ready	Yes	Yes
Compliance industry standards	802.3, 802.3u, 802.3ab	802.3, 802.3u, 802.3ab
Cabling technology	10/100/1000Base-T(X)	10/100/1000Base-T(X)
Supported network protocols	TCP/ IP	TCP/ IP
Ports & interfacesidentical
Ethernet LAN (RJ-45) ports	2	2
USB 2.0 ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
Fiber ports quantity	0	0
eSATA ports quantity	2	2
eSATA	Yes	Yes
Designidentical
Chassis type	Tower	Tower
Product colour	Black	Black
Number of fans	1 fan(s)	1 fan(s)
LED indicators	eSATA, HDD, LAN, Power, Status, USB	eSATA, HDD, LAN, Power, Status, USB
Display type	LCD	LCD
Cable lock slot	Yes	Yes
Cable lock slot type	Kensington	Kensington
Performanceidentical
Buzzer	Yes	Yes
Multilingual support	Yes	Yes
Number of users	4096 user(s)	4096 user(s)
Management protocols	SNMP (v2/v3)	SNMP (v2/v3)
Access Control List (ACL)	Yes	Yes
On/off switch	Yes	Yes
Reset button	Yes	Yes
Security algorithms	SSL/TLS	SSL/TLS
Softwareidentical
Operating system installed	Linux	Linux
Windows operating systems supported	Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Win	Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Win
Linux operating systems supported	Yes	Yes
Mac operating systems supported	Yes	Yes
Server operating systems supported	Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012	Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012
Poweridentical
Power consumption (typical)	31 W	31 W
Power consumption (sleep)	13 W	13 W
AC input voltage	100-240 V	100-240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Output power	120 W	120 W
Weight & dimensionsidentical
Width	235 mm	235 mm
Depth	180 mm	180 mm
Height	177 mm	177 mm
Weight	3 kg	3 kg
Package weight	4.6 kg	4.6 kg
Packaging contentidentical
External power adapter	Yes	Yes
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Operating relative humidity (H-H)	0 - 90%	0 - 90%

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.