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header-product AV transmitter & receiver StarTech.com ST121USBHD HDMI over CAT6 Extender 165 ft 1080p
275.49 €

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 275.49 €: 6 pcs.
Total available for order: 13 pcs.
Warranty: 2 Years
SKU: 10973707
Manufacturer: StarTech
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.07 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
17.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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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

HDMI in:
1
Number of HDMI outputs:
1
RJ-45 input ports:
2
RJ-45 output ports:
2
Weight:
0.46 kg
Type:
AV transmitter & receiver
Maximum transfer distance:
50 m
Cable types supported:
Cat6, Cat5e, Cat5
Product colour:
Black
All features

Technical details

Audio support:
Yes
Sustainability certificates:
RoHS

Ports & interfaces

HDMI in:
1
Number of HDMI outputs:
1
RJ-45 input ports:
2
RJ-45 output ports:
2
USB connector type:
Mini-USB B, USB Type-A
USB ports quantity:
7
Connectivity technology:
Wired

Power

Power consumption (typical): Power consumption in switched-on state expressed in W.
5 W
External power adapter:
Yes
Output current:
1 A
Operating voltage:
5 V
Power plug type:
Type N

Weight & dimensions

Weight:
0.46 kg
Height:
21 mm
Width:
82 mm
Depth:
82 mm

Operational conditions

Operating relative humidity (H-H):
0 - 80
Storage temperature (T-T):
-10 - 60
Operating temperature (T-T):
0 - 40

Packaging data

Package dimensions (WxDxH):
175 x 306 x 74
Package weight:
1067 g
Package depth:
180 mm
Package height:
71 mm
Package width:
309 mm

Packaging content

AC adapter included:
Yes
Cables included:
USB, LAN (RJ-45)
Quick start guide:
Yes

Features

Type:
AV transmitter & receiver
Cable types supported:
Cat6, Cat5e, Cat5
Maximum transfer distance:
50 m
Certification:
CE, FCC, TAA, REACH
Colour depth:
48 bit
Product colour:
Black
Supported video modes:
1080p
Maximum refresh rate:
60 Hz
Carrier frequency:
38 kHz

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Stock data
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
EU9 6 14.07.2026 Best delivery 275.49 €
EU6 1 14.07.2026 Best delivery 293.49 €
WH109 6 28.07.2026 312.99 €
Available only for legal entities
275.49 €
Stock: 6
Delivery Date: 14.07.2026 Best delivery
Warehouse: EU9
293.49 €
Stock: 1
Delivery Date: 14.07.2026 Best delivery
Warehouse: EU6
312.99 €
Stock: 6
Delivery Date: 28.07.2026
Warehouse: WH109

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 275.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 14.07.2026 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: hdmi in, number of hdmi outputs, rj-45 input ports, rj-45 output ports, weight, type, maximum transfer distance, cable types supported, product colour, 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.