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Item#: N82E16815158337

Startech ST121WHD Wireless HDMI Extender WHDI - 1080p Wireless High Definition 100 ft/ 30m Extender

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  • WHDI Technology
  • Ext. HD Video up to 100ft
  • Resolution up to 1080p
  • Pure Hardware Design
  • IR Remote Control enable

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

  • newegg WHDI Technology The ST121WHD provides both local and remote units, and an IR remote control. It delivers a complete, end-to-end alternative for a single source to display digital signage connection. Full HD (1080p) resolution at the maximum distance ensures your content is displayed the way it was meant to be seen.
  • newegg Cost-Effective Solution The ST121WHD provides wireless communication between local and remote receivers, eliminating the need for an expensive cable infrastructure.
  • newegg Easy to Use Pure hardware design makes the ST121WHD easy to install and set up, all without any software or drivers.

Learn more about the STARTECH ST121WHD




Extender & Repeater Type
Video Console/Extender


Resolution Support
1280 x 1024


Cabling: Wireless
Audio: Yes

Local Unit Connectors: 1 x HDMI (19 pin) Female
Remote Unit Connectors: 1 x HDMI (19 pin) Female

Max Distance: 30 m / 100 ft
Maximum Digital Resolutions: 1920x1080
Supported Resolutions: TV: 1080p, 1080i, 720p, 480p
PC: VGA(640X480), SVGA(800X600), XGA(1024X768), SXGA(1280X1024)
Frequency: 5.1-5.9GHz

LED Indicators:
1 x Wireless Network Status Indicator
2 - Video Status Indicator

Operating Temperature: 0~40 degree
Storage Temperature: -20~60 degree
Humidity: 5% ~ 90% RH

Power Adapter Included: Yes
Input Voltage: 115 ~ 230
Input Current: 0.3 A
Output Voltage: 5 DC
Output Current: 1A
Center Tip Polarity: Positive

Dimensions: 5.8" x 3.8" x 0.7"
Color: Black
Enclosure Type: Plastic

Note: The maximum distance between the transmitter and the receiver is 30 meters. If the wireless signal is obstructed by walls, or other interference the signal quality and maximum distance will likely be reduced. The working Frequency band may vary with the relevant laws in different regions.


Extend HD video up to 100ft (30m)

Includes WHDI transmitter (local) and WHDI receiver (remote) units

Supports resolutions up to 1080p (1920x1080)

Pure hardware design - no software or drivers required

IR remote control enables you to control your source device remotely through the wireless connection back to the transmitter

- Place the display in a convenient viewing area, while the system equipment is placed elsewhere in a clean and secure environment
- Ideal for digital signage applications in financial, educational, and business sectors
- Extend your display across harsh environments (e.g. industrial sites)
- Perfect for video conferencing solutions in boardrooms and office settings
- Optimize placement of your demo stations at tradeshows and in auditoriums

Dimensions & Weight


Package Contents

Package Content
1 x Wireless HD Transmitter
1 x Wireless HD Receiver
2 x Positioning Stand
1 x HD Cable
1 x IR Remote Extension Connector
2 x Universal Power Adapter (NA/UK/EU/AUS)
1 x Instruction Manual
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the STARTECH ST121WHD

Do you own this product? Write a Review

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  • Anonymous
  • 12/13/2015 4:20:30 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsA few months later

Pros: Startech Customer service is polite and was quick at returning the units the first and the second times. They made me wait 2 weeks for the 3rd replacement. They won't refund and will spend a lot of money in returns instead. I suggest to wait one or two more years in order to get better technology. Use a HDMI cable instead.

Cons: I had to return the units 3 more times to StarTech. The device just ceased to work after a few weeks. At last return, they sent me their latest version, a smaller box that seem to be able to get a stable link. However, it's obvious that quality was sacrificed in order to maintain that fluid link. I don't get 1080, colors are pale. Ocassionnally, the IR stops and then you must reset the whole thing. The distance between the two units is not as per advertized, I have installed the boxes about 15m apart, still 2 regular walls to go through. The instruction sheet does not mention how to operate the device nor explains the button and its functions, you have to figure it out by yourself, so I did.

Other Thoughts: At the asked price, you shoudl expect better image quality. And keep in mind to not write a review too fast :)

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Home > 
Electronics > 
Professional Video Devices > 
Pro A/V Extender & Repeater > 
Item#: N82E16815158337
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