Product comparison · 2 nas & storage servers

QNAP TS-251-4G NAS/storage server Tower Intel® Celeron® vs QNAP TS-451-4G NAS/storage server Tower Intel® Celeron®

Key differences

Number of storage drives supported
- TS-251-4G NAS/storage server Tower Intel® Celeron®:2
- TS-451-4G NAS/storage server Tower Intel® Celeron®:4
Internal memory type
- TS-251-4G NAS/storage server Tower Intel® Celeron®:DDR3L
- TS-451-4G NAS/storage server Tower Intel® Celeron®:DDR3
Product colour
- TS-251-4G NAS/storage server Tower Intel® Celeron®:Grey, White
- TS-451-4G NAS/storage server Tower Intel® Celeron®:Grey, Silver
Power supply unit (PSU) capacity
- TS-251-4G NAS/storage server Tower Intel® Celeron®:60 W
- TS-451-4G NAS/storage server Tower Intel® Celeron®:90 W
Power consumption (typical)
- TS-251-4G NAS/storage server Tower Intel® Celeron®:19.22 W
- TS-451-4G NAS/storage server Tower Intel® Celeron®:31.07 W
Power consumption (sleep)
- TS-251-4G NAS/storage server Tower Intel® Celeron®:0.47 W
- TS-451-4G NAS/storage server Tower Intel® Celeron®:0.55 W
Width
- TS-251-4G NAS/storage server Tower Intel® Celeron®:102 mm
- TS-451-4G NAS/storage server Tower Intel® Celeron®:180 mm
Depth
- TS-251-4G NAS/storage server Tower Intel® Celeron®:225 mm
- TS-451-4G NAS/storage server Tower Intel® Celeron®:235 mm

Differences highlightedShow differences only

Comparison of TS-251-4G, TS-451-4G
45 specifications	A QNAP TS-251-4G NAS/storage server Tower Intel® Celeron® Model TS-251-4G View product	B QNAP TS-451-4G NAS/storage server Tower Intel® Celeron® Model TS-451-4G View product
Storage1 differ
Number of storage drives supportedDiffers	2	4
Memory1 differ
Internal memory typeDiffers	DDR3L	DDR3
Maximum RAM supportedKnown for one	Unknown — not stated by the source	8 GB
Networkidentical
DHCP clientKnown for one	Unknown — not stated by the source	Yes
DHCP serverKnown for one	Unknown — not stated by the source	Yes
Design1 differ
Product colourDiffers	Grey, White	Grey, Silver
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Power3 differ
Power supply unit (PSU) capacityDiffers	60 W	90 W
Power consumption (typical)Differs	19.22 W	31.07 W
Power consumption (sleep)Differs	0.47 W	0.55 W
Weight & dimensions5 differ
WidthDiffers	102 mm	180 mm
DepthDiffers	225 mm	235 mm
HeightDiffers	168.5 mm	177 mm
WeightDiffers	1.28 kg	3 kg
Package weightDiffers	2.32 kg	4.3 kg

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.