StarTech.com HDBaseT Extender Kit - HDMI Over CAT5
HDBaseT Extender Kit with Compact Transmitter - HDMI over CAT5 - Up to 4K - Extend HDMI video over CAT5 cabling up to 230 feet away with a small compact transmitter
- Brand: StarTech.com
- Category: Switches
- SKU: 3383765
- MPN: ST121HDBTDK
StarTech.com 4K HDMI Extender with Compact Transmitter - HDBaseT -… Save $208.57 off RRP
6 in Stock
$730.24
Inclusive of GST
1
Value Deal
Low prices and fast dispatch on every order. Seen it cheaper? Request a price match.
Shipped to your region. Freight is calculated at checkout from live courier rates.
Standard delivery to main‑centre, ground‑floor addresses is included in the quoted rate. For rural or oversized deliveries, any extra freight will be confirmed before dispatch.
Collection available — we'll confirm pickup readiness after your order:
- 136 Cryers Road, East Tāmaki, Auckland 2013
Key Details:
- SKU:
- CNZ-IM-022045
- MPN:
- ST121HDBTDK
- Brand:
- StarTech.com
We accept





On Sale
Genuine NZ stock with full manufacturer warranty — no parallel imports. Save $208.57 off RRP while stocks last.
StarTech.com HDBaseT Extender Kit - HDMI Over CAT5
HDBaseT Extender Kit | 7.1 Audio | Mounting Hardware Included | Up to 70 m (230 ft.)
This 4K HDMI extender uses HDBaseT to transmit your HDMI A/V signal to a remote location up to 70 m (230 ft.) away.
Easy and Discreet Installation
The transmitter in this HDMI HDBaseT extender kit features a small footprint and built-in HDMI cable that connects directly to your source for reduced clutter. It’s powered from a USB port on your source device, which makes it easier to install in areas where power outlets may be limited. Mounting hardware is included for the receiver for a discreet, professional installation.
Get 4K Video at 130 ft. (40 m)
This HDMI over CAT6 extender maintains your UHD 4K picture quality, even at 130 feet away from your video source. Because the extender is backward compatible with 1080p and lower resolutions at 230 feet away, you can comfortably use this extender to make any video source look great. The extender also supports 7.1 audio to ensure all audio channels are captured.
Seamless Integration with Your Existing Infrastructure
The kit extends HDMI over a single cable, unlike some HDMI extenders that require two cables, reducing potential failure points and lowering your cabling costs. Ideal for digital signage, the HDMI over CAT6 extender uses standard CAT5e, CAT6 or CAT7 cables to extend HDMI video over the Ethernet infrastructure that's already in your building.
The ST121HDBTDK is backed by a StarTech.com 2-year warranty and free lifetime technical support.
The StarTech.com Advantage
- Simple and versatile installation with a compact, USB-powered transmitter that features a built-in HDMI cable
- Astonishing picture quality with support for UHD resolutions up to 4K
- Easy integration with existing CAT5/CAT6/CAT7 infrastructure
This 4K HDMI extender uses HDBaseT to transmit your HDMI A/V signal to a remote location up to 70 m (230 ft.) away.
Easy and Discreet Installation
The transmitter in this HDMI HDBaseT extender kit features a small footprint and built-in HDMI cable that connects directly to your source for reduced clutter. It’s powered from a USB port on your source device, which makes it easier to install in areas where power outlets may be limited. Mounting hardware is included for the receiver for a discreet, professional installation.
Get 4K Video at 130 ft. (40 m)
This HDMI over CAT6 extender maintains your UHD 4K picture quality, even at 130 feet away from your video source. Because the extender is backward compatible with 1080p and lower resolutions at 230 feet away, you can comfortably use this extender to make any video source look great. The extender also supports 7.1 audio to ensure all audio channels are captured.
Seamless Integration with Your Existing Infrastructure
The kit extends HDMI over a single cable, unlike some HDMI extenders that require two cables, reducing potential failure points and lowering your cabling costs. Ideal for digital signage, the HDMI over CAT6 extender uses standard CAT5e, CAT6 or CAT7 cables to extend HDMI video over the Ethernet infrastructure that's already in your building.
The ST121HDBTDK is backed by a StarTech.com 2-year warranty and free lifetime technical support.
The StarTech.com Advantage
- Simple and versatile installation with a compact, USB-powered transmitter that features a built-in HDMI cable
- Astonishing picture quality with support for UHD resolutions up to 4K
- Easy integration with existing CAT5/CAT6/CAT7 infrastructure
Key features
- Type: AV transmitter & receiver
- Maximum resolution: 4096 x 2160 pixels
- Cable types supported: Cat5e, Cat6
- Maximum transfer distance: 70 m
- Audio system: Multichannel
- Audio output channels: 7.1 channels
- LED indicators: Status
- Cable length: 0.1 m
- Rack mounting: Yes
- Plug and Play: Yes
- Daisy chain: No
- Product colour: Black
- HDBaseT certified: Yes
- Certification: CE, FCC, TAA, REACH
- Connectivity technology: Wired
- RJ-45 input ports: 1
- RJ-45 output ports: 1
- HDMI in: 1
- Number of HDMI outputs: 1
- AC input voltage: 100-240 V
- Operating voltage: 12 V
- Input current: 0.6 A
- Output current: 1.5 A
- Power consumption (typical): 18 W
- External power adapter: Yes
- Power plug type: Type M
- Operating temperature (T-T): 0 - 40 °C
- Storage temperature (T-T): -10 - 60 °C
- Operating relative humidity (H-H): 0 - 80%
- Width: 68 mm
Official NZ WarrantiesBrand new, genuine NZ stock
Fast NZ DeliveryTracked courier nationwide
Secure PaymentsPCI-DSS, SSL encrypted
30-Day ReturnsHassle-free returns policy
Insured & TrackedCovered until it reaches you
Same-Day DispatchIn-stock orders ship fast
