Product comparison · 2 nas & storage servers

QNAP TS-439 Pro II+ vs QNAP TS-859 Pro+

Key differences

Number of storage drives supported
- TS-439 Pro II+:4
- TS-859 Pro+:8
Storage drive interface
- TS-439 Pro II+:Serial ATA, Serial ATA II
- TS-859 Pro+:Serial ATA
Number of fans
- TS-439 Pro II+:1 fan(s)
- TS-859 Pro+:2 fan(s)
Power supply unit (PSU) capacity
- TS-439 Pro II+:250 W
- TS-859 Pro+:350 W
Power consumption (typical)
- TS-439 Pro II+:33 W
- TS-859 Pro+:67 W
Power consumption (sleep)
- TS-439 Pro II+:23 W
- TS-859 Pro+:28 W
Weight
- TS-439 Pro II+:3.65 kg
- TS-859 Pro+:7.3 kg
Package weight
- TS-439 Pro II+:4.65 kg
- TS-859 Pro+:8.6 kg

Differences highlightedShow differences only

Comparison of TS-439 Pro II+, TS-859 Pro+
48 specifications	A QNAP TS-439 Pro II+View product	B QNAP TS-859 Pro+View product
Storage2 differ
Number of storage drives supportedDiffers	4	8
Storage drive interfaceDiffers	Serial ATA, Serial ATA II	Serial ATA
Processoridentical
Processor familyKnown for one	Intel Atom®	Unknown — not stated by the source
Ports & interfacesidentical
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
Design1 differ
Number of fansDiffers	1 fan(s)	2 fan(s)
Power3 differ
Power supply unit (PSU) capacityDiffers	250 W	350 W
Power consumption (typical)Differs	33 W	67 W
Power consumption (sleep)Differs	23 W	28 W
Weight & dimensions2 differ
WeightDiffers	3.65 kg	7.3 kg
Package weightDiffers	4.65 kg	8.6 kg
Other features3 differ
Dimensions (WxDxH)Differs	180 x 235 x 177 mm	298.2 x 235.4 x 185.2 mm
FanDiffers	90 mm	120 mm
I/O portsDiffers	1 x VGA, 2 x eSATA	2 x eSATA, 1 x VGA

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.