Product comparison · 2 numeric keypads

Buffalo BSTK11BK numeric keypad Laptop USB Black vs Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey

18specifications compared
16differ
2identical
9known for one product only

Key differences

The Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey has 2 more keyboard keys than the Buffalo BSTK11BK numeric keypad Laptop USB Black (21 vs 19). The Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey has 48.8 mm more width than the Buffalo BSTK11BK numeric keypad Laptop USB Black (132.8 mm vs 84 mm). The Buffalo BSTK11BK numeric keypad Laptop USB Black has 39 mm more depth than the Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey (124 mm vs 85 mm). Device interface: USB on the Buffalo BSTK11BK numeric keypad Laptop USB Black, RF Wireless on the Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey. Purpose: Laptop on the Buffalo BSTK11BK numeric keypad Laptop USB Black, Universal on the Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey.

Device interface
- BSTK11BK numeric keypad Laptop USB Black:USB
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:RF Wireless
Purpose
- BSTK11BK numeric keypad Laptop USB Black:Laptop
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:Universal
Keyboard number of keys
- BSTK11BK numeric keypad Laptop USB Black:19
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:21
Product colour
- BSTK11BK numeric keypad Laptop USB Black:Black
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:Grey
Power source type
- BSTK11BK numeric keypad Laptop USB Black:USB
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:Battery
Width
- BSTK11BK numeric keypad Laptop USB Black:84 mm
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:132.8 mm
Depth
- BSTK11BK numeric keypad Laptop USB Black:124 mm
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:85 mm
Height
- BSTK11BK numeric keypad Laptop USB Black:12 mm
- 4Y41C33791 numeric keypad Universal RF Wireless Grey:13.5 mm

Side by side

Differences highlightedShow differences only

Comparison of BSTK11BK, 4Y41C33791
27 specifications	A Buffalo BSTK11BK numeric keypad Laptop USB Black Model BSTK11BK View product	B Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey Model 4Y41C33791 View product
Features3 differ
Device interfaceDiffers	USB	RF Wireless
Key switch typeKnown for one	Unknown — not stated by the source	Tactile
PurposeDiffers	Laptop	Universal
Keyboard number of keysDiffers	19	21
Keys operating lifeKnown for one	Unknown — not stated by the source	10 million characters
Frequency bandKnown for one	Unknown — not stated by the source	2.4 GHz
Design1 differ
Ergonomic designKnown for one	Unknown — not stated by the source	Yes
Product colourDiffers	Black	Grey
Cable lengthKnown for one	0.8 m	Unknown — not stated by the source
Power1 differ
Power source typeDiffers	USB	Battery
System requirements1 differ
Windows operating systems supportedDiffers	Windows 10, Windows 7, Windows 8, Windows 8.1	Yes
Weight & dimensions4 differ
WidthDiffers	84 mm	132.8 mm
DepthDiffers	124 mm	85 mm
HeightDiffers	12 mm	13.5 mm
WeightDiffers	100 g	109 g
Packaging data4 differ
Package widthDiffers	130 mm	180 mm
Package depthDiffers	230 mm	127 mm
Package heightDiffers	30 mm	43 mm
Package weightDiffers	140 g	277 g
Operational conditions2 differ
Operating temperature (T-T)Differs	-10 - 60 °C	0 - 40 °C
Operating relative humidity (H-H)Differs	20 - 85%	20 - 95%
Other featuresidentical
Wireless receiver interfaceKnown for one	Unknown — not stated by the source	USB
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84716060
Packaging contentidentical
ManualKnown for one	Yes	Unknown — not stated by the source

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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