Is this bidirectional at all?

No. It takes the signal from the Mac and distributes to an extra monitor. Only one port can be used at a time also.

will this work for the surface 3 and windows 8.1?

I bought for my Mac and it works. I am sorry I don't have the answer for Windows OS

Will this connect 2 laptops so second laptop can be used as a second screen?

I wouldn’t think so, as display ports on a laptop are outputs, but never tried.

does this work for Surface 3 running windows 8.1

Yes. Anything on the screen is transferred via cable.

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Amazon Basics MPA_MDP_W Mini DisplayPort Thunderbolt to HDMI DVI VGA Adapter - White

Product ID: 253542761

Details

Colour
White
Compatible devices
Monitor
Connector type
DVI
Item dimensions L x W x H
19.9 x 6.5 x
Specific uses for product
Monitor

⚡Plug & play, no drivers needed

📺4K UHD video support @30Hz

🔌3-in-1 HDMI/DVI/VGA ports

EC$57

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Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔗 Connect Like a Pro, Display Like a Boss

COMPACT SLEEK - Minimalist white design fits perfectly in any modern workspace without clutter.
CRISP 4 K VISUALS - Experience stunning 4K resolution at 30Hz via HDMI for professional-grade presentations.
EFFORTLESS SETUP - Plug and play design means zero downtime—just connect and go.
ULTIMATE CONNECTIVITY TRIO - Seamlessly switch between HDMI, DVI, or VGA for any display setup.
CROSS PLATFORM COMPATIBILITY - Works flawlessly with Windows 7-10 and Mac OS 10.0+, empowering your workflow.

The Amazon Basics MPA_MDP_W adapter is a versatile Mini DisplayPort/Thunderbolt to HDMI, DVI, and VGA converter that supports up to 4K resolution at 30Hz via HDMI. Designed for seamless plug-and-play use with Windows and Mac OS, it offers professional-grade video output in a compact, stylish white form factor, backed by a 1-year limited warranty.

Specifications

ASIN	B01MCTJVAR
Best Sellers Rank	#7,430 in Computers ( See Top 100 in Computers ) #10 in DVI to HDMI Adapters
Brand	Amazon Basics
Color	White
Compatible Devices	Monitor, Television
Connector Type	DVI
Country of Origin	USA
Current Rating	1 Amps
Customer Reviews	4.4 4.4 out of 5 stars (2,634)
Finish	Hdmi,Projector
Global Trade Identification Number	00841710157826
Input Voltage	20 Volts
Item Dimensions	19.9 x 6.5 x 1.5 centimeters
Item Type Name	AmazonBasics Mini DisplayPort to HDMI/DVI/VGA Adapter
Item Weight	0.12 Pounds
Manufacturer	Amazon Basics
Mfr Part Number	MPA_MDP_W
Model Number	MPA_MDP_W
Number of Items	1
Number of Ports	3
Package Quantity	1
Power Plug Type	Type G
Specific Uses For Product	Monitor,Projector
UPC	841710157826 841710158144
Unit Count	1.0 Count
Warranty Type	Limited

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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EC$57

Duties & taxes included

In stock

Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Saint Vincent and the Grenadines.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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5 days ago

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