VEDINDUST SP911A HDMI Dual-Display Adapter

Dual-Display: VEDINDUST SP911A is a USB-assisted HDMI adapter for connecting a laptop to two HDMI displays, with claimed mirror and extended-desktop modes. Its outputs have different resolution limits, and setup requires a driver and display-mode selection.

At a glance

Connects a laptop to two HDMI displays, with mirror and extended-screen modes claimed.
Requires a USB connection and driver installation before use. The macOS app must remain open in the background.
Resolution depends on the output and USB connection. The listing claims 4K@60Hz for OUT 1, while OUT 2 is limited to 1080P@60Hz.
Compact metal housing is listed at 8 x 3 x 1.5 centimetres and 45 Grams.

Price

£25.49Save 15%

Reference price: ~~£29.99~~

Price checked: 14 Nov 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

Snowkids 8K HDMI 2.1 Cable 2m 2-Pack, 48Gbps Ultra High Speed HDMI Cable | Supports 8K@60Hz, 4K@120Hz, eARC HDR10 4:4:4| 21:9, HDCP 2.2/2.3, 3D, VRR, Ethernet, for Latest game console/TV/HDTV/Blu-ray

£15.99

ONYXX HDMI Splitter 1 in 2 Out 4K for Dual Monitors, Same Picture on 2 Screens, Dual HDMI Adapter, 1080P USB Powered Video Splitter for PS5, PS4, Xbox, Fire TV Stick, Sky, Laptop, PC & TV

£11.99

Pros and cons

Pros

Supports extending a laptop desktop across two monitors as well as mirroring the same image, according to the listing.
Two HDMI outputs provide a choice of a higher-resolution OUT 1 and a lower-resolution OUT 2.
Driver files are claimed to be stored on the device, avoiding a separate driver download according to the listing.

Cons

Driver installation and manual display-mode selection add setup steps, and the macOS display app must stay running in the background.
The two outputs are not resolution-equivalent. OUT 2 is listed only for 1080P@60Hz, and USB 2.0 is claimed to limit output to 720P.

Technical specifications

23 specifications

Identity
Brand	VEDINDUST
Model	SP911A
Connector	HDMI
Compatible device	Laptop
Number of ports	2

Display and connection claims
Supported modes	HDMI Splitter Extend, supports Mirror and Extend
OUT 1 maximum claimed output	4K@60Hz
OUT 2 maximum claimed output	1080P@60Hz
USB 3.0 connection claim	1080P resolution
USB 2.0 connection claim	720P resolution
OUT 1 video bandwidth	18Gbps
OUT 2 video bandwidth	3.2Gbps

Power and construction
Power plug type	No Plug
Nominal power	2.5 Watts
Current rating	300 Amps
Colour	Black
Finish	Matte
Housing material	aluminium metal housing

Dimensions and installation
Dimensions listed	8 x 3 x 1.5 centimetres
Weight listed	45 Grams

Warranty and availability
Warranty type	Limited
Product warranty	1
EU spare part availability duration	2 Years

What to know before buying

Listing details to confirm

The listing's resolution statements are inconsistent: it claims 4K@60Hz on OUT 1 when HDMI and USB are connected together, but also says USB 3.0 produces 1080P and USB 2.0 produces 720P. Verify the intended resolution behaviour and USB requirements for the selected computer before buying. The claimed 300 Amps current rating and 2.5 Watts nominal power are also not explained in context.

Who is it for?

A good fit for

Laptop users who need to mirror or extend a desktop to two HDMI displays and are willing to install a driver.
People whose setup can accommodate the USB connection and, on macOS, a display app running in the background.

Less suited to

Buyers seeking a straightforward plug-and-play adapter without driver or app setup.
Anyone needing both outputs to deliver the same high resolution, or relying on USB 2.0 for high-resolution display output.

VEDINDUST SP911A HDMI Dual-Display Adapter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 192 ratings

5 stars75%75%
4 stars14%14%
3 stars3%3%
2 stars2%2%
1 star6%6%

Aggregate ratings are generally favourable, with most ratings in the top category, but a smaller spread of lower ratings means experiences are not uniformly positive. No written feedback is supplied, so the ratings do not identify particular strengths or explain concerns. For buyers, the key practical considerations remain the required driver setup and the listing's differing resolution claims by output and USB connection.

Frequently asked questions

Can the SP911A extend a laptop desktop across two monitors?

The listing claims extended mode as well as mirroring. You must select the desired mode in the computer's display settings, and install the driver before use.

Do both HDMI outputs support 4K at 60Hz?

No. The listing gives OUT 1 a 4K@60Hz claim and lists OUT 2 at 1080P@60Hz. It also gives separate USB-dependent resolution claims, so confirm the applicable limits for your setup.

Does it work without installing software?

The listing says driver installation is required. For macOS, it specifies installing and opening USB Display.app and keeping it running in the background.