Product comparison · 2 usb flash drives

Dahua Technology USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black vs Dahua Technology USB-U176-31-256G USB flash drive

Key differences

Capacity
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:8 GB
- USB-U176-31-256G USB flash drive:256 GB
USB version
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:2.0
- USB-U176-31-256G USB flash drive:3.2 Gen 1 (3.1 Gen 1)
Read speed
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:25 MB/s
- USB-U176-31-256G USB flash drive:150 MB/s
Write speed
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:10 MB/s
- USB-U176-31-256G USB flash drive:100 MB/s
Product colour
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:Black
- USB-U176-31-256G USB flash drive:Red
Width
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:41.1 mm
- USB-U176-31-256G USB flash drive:54 mm
Depth
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:14.8 mm
- USB-U176-31-256G USB flash drive:18.7 mm
Height
- USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black:6.7 mm
- USB-U176-31-256G USB flash drive:7.3 mm

Differences highlightedShow differences only

Comparison of USB-U156-20-8GB, USB-U176-31-256G
28 specifications	A Dahua Technology USB-U156-20-8GB USB flash drive USB Type-A 2.0 Black Model USB-U156-20-8GB View product	B Dahua Technology USB-U176-31-256G USB flash drive Model USB-U176-31-256G View product
Performance5 differ
CapacityDiffers	8 GB	256 GB
USB versionDiffers	2.0	3.2 Gen 1 (3.1 Gen 1)
Read speedDiffers	25 MB/s	150 MB/s
Write speedDiffers	10 MB/s	100 MB/s
Compatible operating systemsDiffers	Windows 7/8/10; macOS10.5+; Linux 2.4.x+	Windows 7/8/10 or above MacOS 10.5 or above Linux 2.4.x or above Android 7.0 or above
Mobile operating systems supportedKnown for one	Unknown — not stated by the source	Android
Design2 differ
Product colourDiffers	Black	Red
Housing materialDiffers	Metal	Acrylonitrile butadiene styrene (ABS)
Protection featuresKnown for one	Shock resistant, Waterproof	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	41.1 mm	54 mm
DepthDiffers	14.8 mm	18.7 mm
HeightDiffers	6.7 mm	7.3 mm
WeightDiffers	8 g	4.5 g
Packaging data2 differ
Package heightDiffers	7.8 mm	8.5 mm
Package weightDiffers	20 g	16.5 g
Other featuresidentical
Warranty periodKnown for one	5 year(s)	Unknown — not stated by the source
Packaging contentidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)

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.