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header-product AV transmitter & receiver StarTech.com ST121USBHD HDMI over CAT6 Extender 165 ft 1080p
282.49 €

AV transmitter & receiver StarTech.com ST121USBHD HDMI over CAT6 Extender 165 ft 1080p

AV transmitter & receiver StarTech.com ST121USBHD Photo 1
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AV transmitter & receiver StarTech.com ST121USBHD HDMI over CAT6 Extender 165 ft 1080p

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AV transmitter & receiver StarTech.com ST121USBHD HDMI over CAT6 Extender 165 ft 1080p

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Short description

The StarTech.com ST121USBHD is an HDMI over CAT6 extender that supports 1080p resolution up to 165 ft (50m). It features a 4-port USB hub, wired connectivity, and supports Cat5, Cat5e, and Cat6 cables. The device operates at 5V with a typical power consumption of 5W. Compact dimensions make it easy to integrate into various setups.
Available at price 282.49 €: 5 pcs.
Total available for order: 11 pcs.
Warranty: 2 Years
SKU: 10973707
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: 1.07 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 €
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Payment Methods:
Bank transfer
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Product information

Description

The StarTech.com ST121USBHD HDMI over CAT6 extender transmits 1080p (up to 1920x1200) video and 7.1 digital audio from a source to a remote HDMI display at distances up to 165 ft (50 m) using shielded CAT6 cable. The kit includes a transmitter and receiver pair and integrates a built-in 4-port USB 2.0 hub to connect remote USB peripherals at the display location. It supports Cat6, Cat5e and Cat5 cabling and is suitable for installations requiring extended HDMI and USB connectivity.

Advantages

The extender preserves uncompressed 1080p video quality and multichannel audio at long distances and provides seamless remote USB connectivity via an integrated 4‑port USB 2.0 hub. It passes EDID information and automatically adjusts video equalization for plug-and-play setup without additional drivers. The kit is TAA compliant, includes mounting hardware for a tidy installation and is covered by a 2-year StarTech.com warranty with lifetime technical support.

Suitable for

  • Digital signage and remote displays in retail, shopping centres and hospitals
  • Point-of-sale (POS) kiosks with touchscreen or USB input devices
  • Conference rooms and lecture halls requiring remote HDMI and USB access
  • Setups where HDMI and multiple USB peripherals must be located separately from the source

Key specifications

  • Model: StarTech.com ST121USBHD
  • Maximum resolution: up to 1920x1200 / 1080p
  • Maximum transfer distance: 50 m (165 ft) using shielded CAT6
  • Cable types supported: Cat6, Cat5e, Cat5 (max distance reduced with unshielded or lower-grade cable)
  • USB: 4× USB 2.0 ports (remote hub)
  • HDMI ports: 1 input, 1 output
  • RJ-45 ports: 2 input, 2 output
  • Power: 5V, typical power consumption 5W
  • Colour: Black
  • Compliance: TAA
  • Weight: 0.46 kg

How to use

Connect the transmitter unit to the HDMI source and the receiver unit to the remote HDMI display. Link the units using shielded CAT6 cable for maximum distance (50 m); using unshielded CAT6 reduces maximum distance to 30 m and Cat5 to 15 m. Attach remote USB devices to the receiver’s 4 USB 2.0 ports to enable remote access or control of the source. Power both units with the supplied power adapters, then verify EDID and video signal automatically through plug-and-play operation. Mount the units using the included mounting hardware if a fixed installation is required.

Usage recommendations

For optimal performance use shielded CAT6 cable and keep cable runs away from sources of electrical interference. Ensure connected USB peripherals comply with USB 2.0 power and bandwidth limitations; high-power devices may require their own power supply. If longer distances or different features are required, verify cable quality and installation environment before deployment.

Specifications

Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired
Type: Characteristics of the device.
AV transmitter & receiver
All features

Technical details

Audio support:
Yes
Sustainability certificates:
RoHS

Packaging content

Quick start guide: Instructions, either online, as a computer program or in paper form, to allow you to set up and start using the product quickly.
Yes
Cables included:
USB, LAN (RJ-45)
AC adapter included:
Yes

Packaging data

Package weight: Weight of the packaged product.
1067 g
Package height: The distance from the top to the bottom of the packaging.
71 mm
Package depth: The distance from the front to the back of the packaging.
180 mm
Package width: The distance from one side of the packaging to the other.
309 mm
Package dimensions (WxDxH):
175 x 306 x 74

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.46 kg
Height: The measurement of the product from head to foot or from base to top.
21 mm
Depth: The distance from the front to the back of something.
82 mm
Width: The measurement or extent of something from side to side.
82 mm

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 N
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.
5 W
Output current:
1 A
Operating voltage: Defines the range of operating voltages available
5 V

Ports & interfaces

USB connector type: The type of USB connector/port that this product has.
USB Type-A, Mini-USB B
USB ports quantity:
7
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
Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired

Features

Certification:
CE, FCC, TAA, REACH
Product colour: The colour e.g. red, blue, green, black, white.
Black
Colour depth:
48 bit
Supported video modes: The video modes that can be displayed by the device.
1080p
Carrier frequency:
38 kHz
Maximum refresh rate:
60 Hz
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
50 m
Cable types supported:
Cat6, Cat5e, Cat5
Type: Characteristics of the device.
AV transmitter & receiver

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Stock data
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
EU9 5 28.09.2026 Best delivery
282.49 € Best price
WH109 5 12.10.2026
320.49 €
EU6 1 28.09.2026 Best delivery
341.49 €
Available only for legal entities
282.49 €
Stock: 5
Delivery Date: 28.09.2026 Best delivery
Warehouse: EU9
320.49 €
Stock: 5
Delivery Date: 12.10.2026
Warehouse: WH109
341.49 €
Stock: 1
Delivery Date: 28.09.2026 Best delivery
Warehouse: EU6

Customer reviews

Customer questions

FAQ

How much does the AV transmitter & receiver StarTech.com ST121USBHD cost, and is it available for purchase?

The price is 282.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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: Bank transfer. 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, 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 AV transmitter & receiver StarTech.com ST121USBHD?

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.