Product comparison · 2 nas & storage servers

QNAP TS-420U NORAIL vs QNAP TS-421U NAS/storage server Rack (1U) Marvell

42specifications compared
2differ
40identical
3known for one product only

Key differences

Maximum supported storage capacity
- TS-420U NORAIL:16 TB
- TS-421U NAS/storage server Rack (1U) Marvell:12 TB
Processor frequency
- TS-420U NORAIL:1.6 GHz
- TS-421U NAS/storage server Rack (1U) Marvell:2 GHz

Side by side

Differences highlightedShow differences only

Comparison of TS-420U NORAIL, TS-421U
45 specifications	A QNAP TS-420U NORAIL View product	B QNAP TS-421U NAS/storage server Rack (1U) Marvell Model TS-421U View product
Storage1 differ
Number of storage drives supported	4	4
Supported storage drive typesKnown for one	HDD	Unknown — not stated by the source
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 capacityDiffers	16 TB	12 TB
RAID support	Yes	Yes
RAID levels	0, 1, 5, 6, 10	0, 1, 5, 6, 10
Hot-swap drive bays	Yes	Yes
Supported file systems	ext3, ext4, FAT32, HFS+, NTFS	ext3, ext4, FAT32, HFS+, NTFS
Processor1 differ
Processor family	Marvell	Marvell
Processor frequencyDiffers	1.6 GHz	2 GHz
Number of processors installed	1	1
Memoryidentical
Internal memory	1 GB	1 GB
Internal memory type	DDR3	DDR3
Flash memory	16 MB	16 MB
Networkidentical
Ethernet LAN	Yes	Yes
Wi-Fi	No	No
iSCSI support	Yes	Yes
Wake-on-LAN ready	Yes	Yes
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
Product colour	Black	Black
Number of fans	2 fan(s)	2 fan(s)
LED indicators	HDD, Status, USB	HDD, Status, USB
Chassis typeKnown for one	Unknown — not stated by the source	Rack (1U)
Performanceidentical
TypeKnown for one	NAS	Unknown — not stated by the source
Management protocols	SNMP	SNMP
Access Control List (ACL)	Yes	Yes
Softwareidentical
Windows operating systems supported	Yes	Yes
Linux operating systems supported	Yes	Yes
Mac operating systems supported	Yes	Yes
Poweridentical
Power consumption (typical)	250 W	250 W
AC input voltage	100-240 V	100-240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Weight & dimensionsidentical
Width	439 mm	439 mm
Depth	483 mm	483 mm
Height	44 mm	44 mm
Weight	6.7 kg	6.7 kg
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Operating relative humidity (H-H)	0 - 95%	0 - 95%
Other featuresidentical
Performance management	S.M.A.R.T., HHS	S.M.A.R.T., HHS

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.

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