StarTech.com HDMI over CAT6 Extender with 4-port USB Hub - 165 ft (50m) - 1080p

Manufacturer: Startech | Model: ST121USBHD | Product ID: 1249 | Warranty: 2 Years
£187.13 (inc. VAT)
8 in stock
100% Money Back Guarantee - Risk Free

Product Technical Specification

Features
TypeAV transmitter & receiver
Cable types supportedCat5,Cat5e,Cat6
Maximum transfer distance50
Maximum refresh rate60
Supported video modes1080p
Colour depth48
Carrier frequency38
Product colourBlack
CertificationCE, FCC, TAA, REACH
Ports & interfaces
Connectivity technologyWired
RJ-45 input ports2
RJ-45 output ports2
HDMI in1
Number of HDMI outputs1
USB ports quantity7
USB connector typeMini-USB B,USB Type-A
Power
Operating voltage5
Output current1
Power consumption (typical)5
External power adapterYes
Power plug typeType N
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-10 - 60
Operating relative humidity (H-H)0 - 80
Weight & dimensions
Width82
Depth82
Height21
Weight460
Packaging data
Package dimensions (WxDxH)175 x 306 x 74
Package width309
Package depth180
Package height71
Package weight1067
Packaging content
AC adapter includedYes
Cables includedLAN (RJ-45),USB
Quick start guideYes
Technical details
Audio supportYes
Sustainability certificatesRoHS

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Wed 26th Aug 2026 to Sat 29th Aug 2026
Business Express
£6.95
Business Express

Business Express

Estimated delivery date: Tue 25th Aug 2026 to Thu 27th Aug 2026
View all Delivery Options & International Rates
Extend 1080p video and four USB peripheral devices to a remote location

This HDMI extender kit lets you transmit your 1080p HD video source to your remote HDMI display at distance of up to 165 ft. away (50 m) using shielded CAT6 cabling. The extender features a built-in 4-port USB 2.0 hub that also lets you connect four remote USB peripheral devices at your display location.

Crystal-clear picture quality

Using this HDMI extender, you can maintain the quality of your high-definition video signal along with the accompanying 7.1 digital audio, even at 165 feet away from your source device. The extender supports resolutions up to 1920x1200 or 1080p - perfect for dazzling your audience in remote digital-signage applications in hospitals or at shopping centers.

Hassle-free remote USB integration

The built-in 4-port USB 2.0 hub lets you remotely connect, access or control up to four USB devices located at your remote display - great for flash drives, printers, scanners, external hard drives and I/O devices. Remote USB extension also enables you to remotely control your source device, which is ideal for adding touchscreen interfaces at your display in market or POS kiosks.

Easy installation and setup

For hassle-free setup the HDMI extender offers easy plug-and-play installation with no additional software or drivers required. Plus, the extender passes the EDID information included in your HDMI signal, and automatically adjusts video equalization ensuring you won’t have to configure it manually. Mounting hardware is also included, for a tidy and professional installation.

Note: To maximize performance this extender requires shielded CAT6 cable. When using unshielded CAT6 cable the maximum distance is reduced to 30m. When using CAT5 cable the maximum distance is reduced to 15m.

The ST121USBHD is TAA compliant and backed by a 2-year StarTech.com warranty with free lifetime technical support.

The StarTech.com Advantage

- Crystal-clear picture quality, with support for uncompressed 1920x1200 or 1080p HD video extension
- Easy remote peripheral integration, with a built-in 4-port USB hub
- Tidy, professional installation using the included mounting hardware
Features
TypeAV transmitter & receiver
Cable types supportedCat5,Cat5e,Cat6
Maximum transfer distance50
Maximum refresh rate60
Supported video modes1080p
Colour depth48
Carrier frequency38
Product colourBlack
CertificationCE, FCC, TAA, REACH
Ports & interfaces
Connectivity technologyWired
RJ-45 input ports2
RJ-45 output ports2
HDMI in1
Number of HDMI outputs1
USB ports quantity7
USB connector typeMini-USB B,USB Type-A
Power
Operating voltage5
Output current1
Power consumption (typical)5
External power adapterYes
Power plug typeType N
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-10 - 60
Operating relative humidity (H-H)0 - 80
Weight & dimensions
Width82
Depth82
Height21
Weight460
Packaging data
Package dimensions (WxDxH)175 x 306 x 74
Package width309
Package depth180
Package height71
Package weight1067
Packaging content
AC adapter includedYes
Cables includedLAN (RJ-45),USB
Quick start guideYes
Technical details
Audio supportYes
Sustainability certificatesRoHS

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Buykingston order despatch times:

We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Despatch times do not apply to UK public holidays.

Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

Our warehouse reserves the right to upgrade the delivery method you select on your order.

Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

Product Returns Note

Buykingston offers a simple, hassle-free returns policy. If for whatever reason you are not happy with the item purchased, you can return it to us within 14 days of receipt for a refund. This applies to items purchased direct through Buykingston only.

Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If an item has been opened for inspection but shows signs of use beyond that, a deduction may apply to reflect the reduced value — see our full Terms & Conditions (Section 12) for details.

Some items are excluded from our money-back guarantee unless they have developed a fault. These include:

- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with custom logos on them, e.g. USB flash drives and memory cards with your own logo

Returns FAQs

What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked items.

How do I go about returning my order?
Please contact us via our contact page with your order number. We will provide you with an RMA number and return instructions, including your return deadline and whether a freepost label applies to your order.

Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.

Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we understand you may no longer have the original packaging.

Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable return postage, or provide a freepost label where available. If you are returning an item for another reason (including simply changing your mind), you are responsible for return postage unless we have expressly confirmed a freepost label in your RMA email — we recommend using a tracked and insured service for items of significant value.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer directly for assistance.

Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.