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header-product HDMI over CAT6 Extender Kit StarTech ST121HD20V — 4K 60Hz, HDMI transmitter & receiver, Cat6, 12V
261.99 €

HDMI over CAT6 Extender Kit StarTech ST121HD20V — 4K 60Hz, HDMI transmitter & receiver, Cat6, 12V

StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 1
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 2
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 3
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 4
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 5
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 1
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 2
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 3
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 4
StarTech HDMI over CAT6 Extender Kit ST121HD20V Photo 5
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HDMI over CAT6 Extender Kit StarTech ST121HD20V — 4K 60Hz, HDMI transmitter & receiver, Cat6, 12V

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HDMI over CAT6 Extender Kit StarTech ST121HD20V — 4K 60Hz, HDMI transmitter & receiver, Cat6, 12V

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Short description

Wired HDMI over CAT6 extender kit StarTech ST121HD20V includes an AV transmitter and receiver for extending HDMI signals up to 3840×2160 at 60Hz over Cat6 cable. Designed for AV distribution, digital signage and remote displays, it requires 12 V operating voltage on the transmitter and supports AC input 100–240 V. Compact black units with low weight for installations.
Available for order: 8 pcs.
Warranty: 2 Years
SKU: 2106624
Manufacturer: StarTech
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.79 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
11.08.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
14.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.16 kg)
Parcel couriers
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From 1.79 €
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Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 7.28 euros per month
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Product information

Description

The StarTech ST121HD20V HDMI over CAT6 Extender Kit includes a transmitter and receiver pair that extends HDMI signals up to 4K (3840×2160) at 60Hz over a single Cat6 cable. The compact black units provide a local HDMI output on the transmitter and are designed for AV distribution, digital signage and remote display installations. The transmitter requires a 12 V supply while the kit supports AC input 100–240 V for external power. The units are lightweight and intended for easy mounting in ceilings, walls or AV racks.

Advantages

This extender supports HDMI 2.0 features including 4:4:4 chroma subsampling and High Dynamic Range (HDR), enabling accurate color reproduction and increased contrast for high-quality video content. It can transmit 4K 60Hz signals up to 50 m (165 ft) over a single Cat6 cable, reducing the need for long HDMI cables and simplifying installation through existing cabling paths. The kit is HDCP 2.2 compatible and backward compatible with earlier HDMI/HDCP versions, and it includes compact, low-weight units suitable for discreet installation.

Suitable for

  • Digital signage in retail, hospitality or transportation hubs
  • Conference rooms, lecture halls and meeting spaces
  • Remote TV or display installations where long HDMI runs are impractical
  • Home theater or media player distribution using existing Cat6 infrastructure

Key specifications

  • Maximum resolution: 3840×2160 at 60Hz (4K 60Hz)
  • HDMI version: HDMI 2.0 features (4:4:4 chroma subsampling)
  • HDR support for increased contrast and color range
  • Maximum cable distance over Cat6: 50 m (165 ft)
  • Audio support: multi-channel audio including 7.1 formats
  • Local HDMI output on the transmitter for a nearby display
  • Power: transmitter requires 12 V; unit accepts 100–240 V AC via adapter
  • Color: black; weight: approximately 0.156 kg per unit

How to use

Connect the HDMI source (for example a Blu‑ray player, streaming box or PC) to the transmitter's HDMI input and attach the local HDMI output if a nearby display is required. Run a single Cat6 cable from the transmitter to the receiver up to 50 m (165 ft). Connect the receiver's HDMI output to the remote display. Provide 12 V power to the transmitter as specified and power the receiver per the included adapter instructions. Ensure HDMI cables, source and display devices support the intended resolution and HDCP requirements.

Usage recommendations

For best performance, use solid-core Cat6 cable with good terminations and keep runs away from high-power electrical cabling to minimize interference. Verify that source and display devices support 4K 60Hz and HDCP 2.2 when transmitting protected content. For installations through walls or ceilings, follow local electrical and building codes and use appropriate mounting hardware.

Specifications

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.
3840 x 2160
Product colour: The colour e.g. red, blue, green, black, white.
Black
All features
Connectivity technology: The technology that enables connectivity of the device, e.g. wired or wireless.
Wired
Audio output channels: An audio output channel is an electric circuit which acts as a path for a signal produced by a device. A device may have several audio output channels.
7.1
Input current:
0.3
Output current:
1 A
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
HDMI in: Port (socket) for HDMI input.
1
Number of HDMI outputs: Port (socket) for HDMI output.
2
Cable types supported:
Cat6
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
50 m
RJ-45 input ports:
1
RJ-45 output ports:
1
Power plug type:
Type M
IR blaster included:
Yes
Included power plug types:
JP, ANZ, EU, NA, UK
IR receiver included:
Yes
Operating voltage (transmitter):
12 V
Operating voltage (receiver):
12 V

Logistics data

Products per master (outer) case:
20 pc(s)
Master (outer) case height:
282 mm
Master (outer) case length:
457 mm
Master (outer) case width:
375 mm
Harmonized System (HS) code:
85176200

Technical details

Type: Characteristics of the device.
AV transmitter & receiver

Other features

Height: The measurement of the product from head to foot or from base to top.
13 mm
Width: The measurement or extent of something from side to side.
70 mm
Depth: The distance from the front to the back of something.
97 mm

Packaging data

Package weight: Weight of the packaged product.
777 g
Package height: The distance from the top to the bottom of the packaging.
70 mm
Package depth: The distance from the front to the back of the packaging.
220 mm
Package width: The distance from one side of the packaging to the other.
130 mm

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.
0.156 kg

Certificates

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

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.
-20 - 60
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 40

Features

Maximum refresh rate:
60 Hz
HDCP: High-bandwidth Digital Content Protection (HDCP) is a form of digital copy protection to prevent copying of digital audio and video content as it travels across connections.
Yes
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.
3840 x 2160, 2560 x 1600 (WQXGA), 1920 x 1200 (WUXGA), 1920 x 1080 (HD 1080), 1280 x 720 (HD 720)
HDMI version:
2.0
Product colour: The colour e.g. red, blue, green, black, white.
Black
HDCP version:
2.2
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.
3840 x 2160

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Customer reviews

Customer questions

FAQ

How much does the StarTech HDMI over CAT6 Extender Kit ST121HD20V cost, and is it available for purchase?

The price is 261.99 € (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 11.08.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can StarTech HDMI over CAT6 Extender Kit ST121HD20V be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the StarTech HDMI over CAT6 Extender Kit ST121HD20V online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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: maximum resolution, 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 StarTech HDMI over CAT6 Extender Kit ST121HD20V?

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.
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