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header-product StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable ST121SHD50 AV Transmitter and Receiver 1920 x 1080 Pixels 50m Range
157.49 €

StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable ST121SHD50 AV Transmitter and Receiver 1920 x 1080 Pixels 50m Range

StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 1
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 2
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StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 4
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 5
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 6
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 7
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 1
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 2
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 3
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 4
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 5
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 6
StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender Photo 7
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StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable ST121SHD50 AV Transmitter and Receiver 1920 x 1080 Pixels 50m Range

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Short description

StarTech HDMI Over CAT5e/CAT6 Extender ST121SHD50 is a wired AV transmitter and receiver set designed to transmit high-definition video signals up to 50 meters over standard network cables. Supporting a maximum resolution of 1920 x 1080 pixels and featuring Power Over Cable technology, this device ensures reliable signal extension for digital signage, presentations, and home entertainment setups without requiring a separate power supply at the remote end.
Available at price 157.49 €: 4 pcs.
Total available for order: 8 pcs.
Warranty: 2 Years
SKU: 294325
Manufacturer: StarTech
Charging device included Charging device included
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
28.09.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
01.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.82 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
01.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Available for private customers at price 188.99 €: 2 pcs.
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Product information

Description

The StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable ST121SHD50 is a reliable wired audio and video extension solution designed to transmit high-definition signals over standard network cabling. This device consists of a matched transmitter and receiver set that allows users to bridge long distances between a video source and a display without signal degradation. By utilizing standard Cat5e or Cat6 Ethernet infrastructure, the extender provides a cost-effective method for spanning distances of up to 50 meters, making it ideal for professional installations, educational environments, and complex home entertainment setups.

Advantages

This extender system utilizes Power Over Cable technology, which means that only a single power adapter is required to operate both the transmitter and receiver units. This simplifies cable management and enables placement in locations where power outlets are scarce or difficult to access. The hardware supports high-definition video resolutions up to 1920 x 1080 pixels, ensuring sharp and clear visual output for various media types. Furthermore, the wired connection guarantees stable data transfer without wireless interference, and the plug-and-play design requires no additional software or driver installations.

Suitable for

  • Extending digital signage displays in retail or corporate environments
  • Presentations in conference rooms and lecture halls
  • Home entertainment systems where video sources are kept away from the display
  • Connecting projectors and remote monitors over distances up to 50 meters

This product may not be suitable for environments requiring wireless connectivity or setups that exceed a 50-meter cable distance. It is also not designed for HDMI matrix switching or splitting signals to multiple displays simultaneously from a single receiver unit.

Key specifications

  • Wired AV transmitter and receiver set
  • Maximum resolution of 1920 x 1080 pixels
  • Maximum transfer distance of 50 meters
  • Supported cable types include Cat5e and Cat6
  • Power Over Cable functionality

To set up the device, connect the local transmitter unit to your video source using an HDMI cable, and connect the remote receiver unit to your display or projector. Run standard Cat5e or Cat6 cables between the transmitter and the receiver to bridge the distance. Plug the included power adapter into either the transmitter or the receiver, and power on your connected equipment. The system will automatically establish the link and transmit the audio and video signals without requiring manual configuration.

What to consider before purchase

  • Ensure your cable run between the source and display does not exceed 50 meters
  • Verify that you have compatible Cat5e or Cat6 Ethernet cabling available
  • Check that your target display resolution does not exceed 1920 x 1080 pixels

For optimal performance, use high-quality Cat5e or Cat6 network cables and avoid sharp bends or coiling excess cable tightly near electrical interference sources. Ensure both units are securely mounted if installed in permanent professional environments.

Specifications

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired
Maximum resolution: The maximum number of pixels that can be displayed in the image. It is usually quoted as width × height,: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels.
1920 x 1080
Type: Characteristics of the device.
AV transmitter & receiver
All features

Logistics data

Products per master (outer) case:
12 pc(s)
Master (outer) case height:
269 mm
Master (outer) case length:
326 mm
Master (outer) case width:
416 mm

Technical details

Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
RoHS

Packaging content

Mounting brackets included:
Yes
Manual:
Yes
Cables included:
HDMI
AC adapter included:
Yes

Packaging data

Package weight: Weight of the packaged product.
935 g
Package height: The distance from the top to the bottom of the packaging.
66 mm
Package depth: The distance from the front to the back of the packaging.
159 mm
Package width: The distance from one side of the packaging to the other.
235 mm

Weight & dimensions

Transmitter weight:
157 g
Transmitter dimensions (WxDxH):
51 x 80 x 21
Receiver weight:
157 g
Receiver dimensions (WxDxH):
51 x 80 x 21

Operational conditions

Operating relative humidity (H-H):
0 - 80
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-10 - 60
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 40

Power

Power plug type:
Type M
External power adapter:
Yes
Power consumption (typical): Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
18 W
Output current:
1.5 A
Input current:
0.5
Operating voltage: Defines the range of operating voltages available
12 V
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100-240

Ports & interfaces

DC-in jack: The socket/plug where the DC electricity supply connects to the device.
Yes
HDMI in: Port (socket) for HDMI input.
1
Number of HDMI outputs: Port (socket) for HDMI output.
1
RJ-45 output ports:
2
RJ-45 input ports:
2
Ethernet LAN: An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.
Yes
Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired

Features

Certification:
CE, FCC, REACH, TAA
Product colour: The colour e.g. red, blue, green, black, white.
Black
Rack mounting: The type of mounting that can position devices in a shelving system (rack).
Yes
Material: The material from which a thing is or can be made e.g. wood, plastic.
Aluminium
LED indicators:
Power
Supported graphics resolutions: The graphic resolutions that can be displayed by the device. The graphic resolution describes the width and height dimensions of a display, such as a computer monitor, measured in pixels.
1920 x 1080 (HD 1080)
Supported video modes: The video modes that can be displayed by the device.
1080p, 1080i
Daisy chain:
No
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
50 m
Cable types supported:
Cat6, Cat5e
Maximum resolution: The maximum number of pixels that can be displayed in the image. It is usually quoted as width × height,: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels.
1920 x 1080
Type: Characteristics of the device.
AV transmitter & receiver

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Stock data
Warehouse Stock Delivery to the store Store Price
WH354 2 28.09.2026 Best delivery
188.99 €
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
EU9 4 28.09.2026 Best delivery
157.49 € Best price
WH109 2 12.10.2026
168.49 €
188.99 €
Stock: 2
Delivery Date: 28.09.2026 Best delivery
Warehouse: WH354
Available only for legal entities
157.49 €
Stock: 4
Delivery Date: 28.09.2026 Best delivery
Warehouse: EU9
168.49 €
Stock: 2
Delivery Date: 12.10.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender cost, and is it available for purchase?

The price is 157.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 28.09.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All StarTech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized StarTech service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connectivity technology, maximum resolution, type, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for StarTech ST121SHD50 HDMI Over CAT5e/CAT6 Extender?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.