Product comparison · 2 nas & storage servers

QNAP TS-121 1x3TB vs QNAP TS-421U 2x2TB

Key differences

Differences highlightedShow differences only

Comparison of TS-121 1x3TB, TS-421U 2x2TB
65 specifications	A QNAP TS-121 1x3TB View product	B QNAP TS-421U 2x2TB View product
Storage6 differ
Total installed storage capacityDiffers	3 TB	4 TB
Number of storage drives installedDiffers	1	2
Number of storage drives supportedDiffers	1	4
Storage drive capacityDiffers	3 TB	2 TB
Maximum supported storage capacityDiffers	4 TB	12 TB
RAID supportDiffers	No	Yes
RAID levelsKnown for one	Unknown — not stated by the source	0, 1, 5, 5+0, 5+1, 6, 10, JBOD
Networkidentical
Wake-on-LAN readyKnown for one	Unknown — not stated by the source	Yes
Ports & interfaces3 differ
Ethernet LAN (RJ-45) portsDiffers	1	2
USB 2.0 ports quantityDiffers	1	2
eSATA ports quantityDiffers	1	2
Design2 differ
Chassis typeDiffers	Tower	Rack (1U)
Number of fansDiffers	1 fan(s)	2 fan(s)
Performance2 differ
Multilingual supportKnown for one	Unknown — not stated by the source	Yes
Number of usersDiffers	2048 user(s)	4096 user(s)
Security algorithmsDiffers	SSL/TLS	HTTPS, SSL/TLS
Web-based managementKnown for one	Yes	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	7 W	33 W
Power consumption (sleep)Differs	4 W	12 W
AC input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Output powerKnown for one	Unknown — not stated by the source	250 W
Weight & dimensions5 differ
WidthDiffers	67 mm	483 mm
DepthDiffers	216 mm	439 mm
HeightDiffers	150.2 mm	44 mm
WeightDiffers	1.06 kg	6.7 kg
Package weightDiffers	1.86 kg	11.1 kg
Operational conditions1 differ
Operating relative humidity (H-H)Differs	0 - 95%	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.