# AV transmitter & receiver StarTech ST121HDBTE

**URL:** https://aio.lv/en/product--startech-st121hdbte--294323
**Data updated:** 2025-12-28 21:14 (EET)
**Category:** Audio & Video Extenders
**Manufacturer:** StarTech
**Manufacturer code:** ST121HDBTE
**EAN:** 0065030851107
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 270.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 223.96 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-st121hdbte--294323

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The StarTech HDMI over CAT5e HDBaseT Extender supports Ultra HD 4K resolution (4096 x 2160 pixels) over Cat5e or Cat6 cables. It features Power over Cable technology, allowing for easy installation with a single cable. The device operates on 12V with a wide AC input voltage range of 110-240V. Compact dimensions (67mm x 80mm x 25mm) make it suitable for various setups. Ideal for extending HDMI signals over long distances while maintaining high quality.

## Long description

The StarTech ST121HDBTE AV transmitter & receiver extends HDMI signals up to 230 ft (70 m) over a single CAT5e or CAT6 cable using HDBaseT technology. It supports Ultra HD 4K (4096 x 2160) and Full HD 1080p resolutions, transmits uncompressed HDMI audio and video, and offers Power over Cable (POC) so the receiver can be powered from the transmitter's power source. The compact black units are suitable for installations that require long-distance HDMI distribution while preserving image and audio quality.
Advantages
HDBaseT delivers zero-latency transmission of uncompressed HDMI video and audio along with additional signals such as Ethernet, IR and RS-232 over a single CAT5e/6 cable. The ST121HDBTE supports 4K at long range and 1080p up to the full 70 m, reducing signal degradation compared with long HDMI cables. Power over Cable simplifies installation by allowing one power source to power both transmitter and receiver. The kit includes mounting hardware and is TAA compliant, with a 2-year manufacturer warranty.
Suitable for
Digital signage in shopping centres, airports and transport hubs
AV distribution in schools, hospitals and corporate buildings
Stadiums, auditoriums and conference rooms requiring remote displays
Industrial or remote areas where power outlets are limited
Key specifications
Type: AV transmitter & receiver
Maximum resolution: 4096 x 2160 (4K)
Maximum transfer distance: 70 m (230 ft) over single CAT5e/6
Cable types supported: Cat5e, Cat6
HDMI ports: 1 input, 1 output
RJ-45 ports: 1 input, 1 output
Power: supports Power over Cable (POC); operates on 12V (AC input 110–240V)
Colour: Black
Weight: 0.428 kg
MPN: ST121HDBTE
How to use
Connect the HDMI source (PC, media player, set-top box) to the transmitter HDMI input and connect the display to the receiver HDMI output. Run a single CAT5e or CAT6 cable between the transmitter and receiver RJ-45 ports. Power the transmitter with the supplied 12V adapter; with Power over Cable enabled the receiver can be powered through the same cable, eliminating the need for a local power outlet. Use the included mounting hardware to secure the units where required and verify signal and resolution settings on the source and display.
Usage recommendations
For best results, use good-quality Cat5e or Cat6 cable in continuous runs without patch panels where possible, verify cable terminations, and confirm source and display settings support the intended resolution (4K or 1080p). Keep cable runs away from strong EMI sources and use shielded cable if required by the environment.

## Specifications

### Technical details

| Feature | Value |
|---|---|
| Audio support | Yes |
| Compliance certificates | RoHS |

### Ports & interfaces

| Feature | Value |
|---|---|
| HDMI in | 1 |
| Number of HDMI outputs | 1 |
| RJ-45 input ports | 1 |
| RJ-45 output ports | 1 |
| DC-in jack | Yes |
| Connectivity technology | Wired |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 3 W |
| Input current | 0.5 |
| Output current | 1.5 A |
| Operating voltage | 12 V |
| AC input voltage | 110 - 240 |
| Power plug type | Type M |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.428 kg |
| Height | 25 mm |
| Width | 67 mm |
| Depth | 80 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 0 - 80 |
| Storage temperature (T-T) | -10 - 60 |
| Operating temperature (T-T) | 0 - 40 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 1100 g |
| Package depth | 156 mm |
| Package height | 65 mm |
| Package width | 235 mm |

### Packaging content

| Feature | Value |
|---|---|
| AC adapter included | Yes |
| Cables included | LAN (RJ-45) |
| Manual | Yes |
| Mounting brackets included | Yes |
| Included power plug types | AU, EU, NA, UK |
| Grounding wire | Yes |

### Features

| Feature | Value |
|---|---|
| Type | AV transmitter & receiver |
| Maximum resolution | 4096 x 2160 |
| Cable types supported | Cat5e, Cat6 |
| Maximum transfer distance | 70 m |
| Certification | CE, FCC, HDBT, TAA |
| Audio system | Multichannel |
| Material | Aluminium |
| Cable length | 0.1 m |
| Product colour | Black |
| Audio output channels | 7.1 |
| Supported graphics resolutions | 1920 x 1200 (WUXGA), 1280 x 720 (HD 720), 4096 x 2160, 2560 x 1600 (WQXGA), 1920 x 1080 (HD 1080) |
| Supported video modes | 720p, 1080p |
| Maximum refresh rate | 60 Hz |
| Daisy chain | No |
| Mean time between failures (MTBF) | 52000 h |
| LED indicators | Status |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 257 mm |
| Master (outer) case width | 325 mm |
| Master (outer) case length | 411 mm |
| Products per master (outer) case | 12 pc(s) |

## FAQ

### How much does the AV transmitter & receiver StarTech ST121HDBTE cost, and is it available for purchase?

The price is 270.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 101 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 08.07.2026 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: 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. More information about warranty service: https://aio.lv/en/warranty

### 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 resolution, 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 ST121HDBTE?

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.

## Image

https://aio.lv/img/cache/product/294323/65766452_large.webp