UltraSlim 4K/30 HDMI Transmitter 70M

Name: UltraSlim 4K/30 HDMI Transmitter 70M
Brand: KanexPro
SKU: EXT-HDBT70MTX

Extend 4K/30 up to 40m with bi-directional IR, RS-232 & PoH

EXT-HDBT70MTXUPC 813982021365

Discontinued. KanexPro no longer makes this part; remaining stock is sold while it lasts.

Clearance In stock UltraSlim 4K/30 HDMI Transmitter 70M – KanexPro EXT-HDBT70MTX

Trade pricing and stock

Specifications, drawings and documents stay open to everyone. Net pricing, stock by warehouse and ordering need an approved trade account.

Apply Sign in

Approval is usually same working day.

Overview

UltraSlim HDBaseT transmitter unit for point-to-point HDMI extension up to 230ft / 70m at 1080p or 130ft / 40m at 4K/30 over a single Cat5e/6a cable. The EXT-HDBT70MTX is HDCP 2.2 compliant and supports bidirectional PoH, RS-232, and IR pass-through — pairing with the EXT-HDBT70MRX receiver or a compatible HDBaseT receiver for flexible matrix and point-to-point installations.

The UltraSlim metal enclosure with mounting ears allows installation behind displays, in lecterns, or anywhere space is limited. LED indicators for LINK, HDCP, and Power provide instant connection status. Sold as TX unit only — receiver sold separately.

Key features

UltraSlim HDBaseT transmitter — TX unit only, pairs with EXT-HDBT70MRX or compatible HDBaseT receiver
Supports 1080p up to 230ft / 70m and 4K/30 up to 130ft / 40m over single Cat5e/6a
HDMI 1.4 and HDCP 2.2 compliant — 10.2Gbps bandwidth
Bi-directional PoH — powers RX over HDBaseT cable when adapter connected to TX
Bi-directional RS-232 and IR pass-through
CEC pass-through
LED indicators: LINK, HDCP, Power
Compact metal enclosure with mounting ears

Technical
HDMI Standard	HDMI 1.4 / HDCP 2.2
Bandwidth	10.2Gbps
Max Resolution	4K×2K@30Hz (130ft/40m); 1080p@60Hz (230ft/70m)
Connection — Transmitter
Input	1× HDMI [female]; 1× 3.5mm IR IN; 1× 3-pin Phoenix RS-232
Output	1× RJ-45 HDBT OUT; 1× 3.5mm IR OUT; 1× 3-pin Phoenix RS-232
Mechanical
Dimensions	4.53″ (W) × 0.64″ (H) × 4.29″ (D) / 115 × 16.2 × 109mm
Weight	0.43 lbs (193g)
Power Supply	AC 100–240V ? DC 24V/1.25A; PoH bidirectional; 14W max
Operating Temp	32–122°F / 0–50°C
Package Contents
1× TX unit, 2× Mounting Ears, 4× Mounting Screws, 4× Plastic Cushions, 1× RS-232 Cable, 1× IR Emitter, 1× 24V/1.25A Power Adapter, 1× User Manual

UltraSlim 4K/30 HDMI Transmitter 70M panel drawing

UltraSlim 4K/30 HDMI Transmitter 70M system diagram

UltraSlim 4K/30 HDMI Transmitter 70M applications

Manual~~Installation and operation~~

Spec sheet~~Full specification~~

Sales sheet~~For bid packages~~

What receiver does this pair with?

The EXT-HDBT70MRX is the matching KanexPro receiver. It also works with any compatible HDBaseT receiver that supports the same HDBaseT standard.

Does this support 4K/60?

No. Maximum is 4K×2K@30Hz at up to 130ft / 40m. For 4K/60 support see EXT-4KHD150M2.

Can this TX power the RX?

Yes. Connect the 24V/1.25A adapter to this TX unit — PoH will supply power to the paired RX over the Cat cable.

Is RS-232 control bidirectional?

Yes. RS-232 commands pass in both directions over the HDBaseT link, allowing control of sources from the display end and displays from the source end.

What cable termination is required?

T568B straight-through Cat5e or Cat6a on both ends, shielded preferred. Do not use patch cables longer than 5m at either end.

LINK LED is off — no connection?

Verify the Cat cable is connected to HDBT OUT on this TX and HDBT IN on the paired RX. Confirm cable is straight-through T568B and undamaged.

Can I use this in a matrix switcher?

Yes. Connect HDBT OUT to a compatible HDBaseT matrix input. Verify the matrix supports the same HDBaseT standard.

the other half of the pair