Audio-visual installers, church technical teams, conference venue managers, university lecture theatre staff, hotel banqueting departments, and shopping mall signage operators all hit the same wall. Ordinary copper HDMI cables begin dropping signal past ten metres. The picture flickers, the screen blanks at random, or the projector refuses to lock onto 4K and falls back to 1080p. Adding a booster or an extender box introduces a mains socket and one more part that can fail at the ceiling mount. The UGREEN HD178 removes that problem by converting the electrical signal to light inside the source plug, then back to electrical at the display plug.

Unlike traditional electronics retailers in Kenya who stock only short copper leads, Mascom International keeps long-run optical cable on the shelf for installers working to a deadline. Installers consistently report that one UGREEN HD178 replaces a copper cable, an extender kit, and a power point at the projector. At Mascom International, we're witnessing steady demand from churches moving to 4K projection and from boardrooms across Upper Hill and Westlands. Visit our Kimathi Street shop to test the UGREEN HD178 on your own laptop and projector, or order for pay-on-arrival delivery anywhere in Kenya.

Copper HDMI cable loses signal strength with distance, and beyond roughly ten metres a 4K feed starts failing. You see flicker, sparkle, intermittent black screens, or a projector that silently drops to 1080p. The UGREEN HD178 converts the video into light pulses inside the source connector and carries them down four glass fibre strands, where distance costs almost nothing in signal strength. Forty metres arrives looking the same as one metre. That is why lecture halls, church sanctuaries, and mall signage runs use optical cable rather than thicker copper.

The UGREEN HD178 runs to the HDMI 2.0b ceiling: 4K UHD at 3840 x 2160 pixels and 60Hz, with 18Gbps of bandwidth, 48-bit colour and 4:4:4 chroma sampling. It also handles 1080p at 120Hz for gaming and camera feeds needing smooth motion. HDCP 2.2 support means Netflix, Showmax, DSTV, and Blu-ray sources play without copy-protection errors. It stays backward compatible with HDMI 1.4 and 1.3, so older laptops, decoders, and projectors on your existing setup still connect and display correctly.

No external power is needed. The UGREEN HD178 draws under 250mW directly from the HDMI port of your source device, which is well within what a laptop, decoder, or console supplies. That matters for ceiling-mounted projectors in Kenyan halls, where adding a socket at the mount means calling an electrician and cutting into finished plasterwork. You plug both ends in and the cable works. No adapter, no injector, no power brick sitting in the ceiling void collecting dust.

Direction matters, and getting it wrong gives you a blank screen. The plug labelled Source connects to the device sending the picture: laptop, PlayStation, DSTV decoder, camera, or NVR. The plug labelled Display connects to the projector, television, or monitor receiving it. This is a one-way cable, not bidirectional, because the photoelectric conversion module sits inside the plugs. Check the labels before pulling the cable through conduit, since reversing a forty-metre run after installation wastes an afternoon.

It works with all of them, but at HDMI 2.0 speeds. PlayStation 5 and Xbox Series X output 4K at 60Hz through this cable without issue, which suits almost every television and projector sold in Kenya today. It will not carry 4K at 120Hz or 8K, since those need HDMI 2.1 and 48Gbps of bandwidth. An 8K television connected through it displays 4K content correctly. For 120Hz gaming, ask our team about UGREEN's HDMI 2.1 optical range instead.

Full uncompressed audio passes through untouched. Dolby TrueHD, DTS-HD Master Audio, Dolby Digital 7.1 surround, and multichannel PCM all reach your receiver, soundbar, or church sound desk down the same fibre run. Audio Return Channel is supported, letting a television send its own audio back to a connected amplifier. Because sound and picture share one cable, you skip running a separate audio line across the hall, which saves both cost and installation time on large venue jobs.

Yes, and the slim profile helps considerably. Optical cores need no heavy shielding braid, so the cable is thinner and lighter than a copper HDMI run of the same length, pulling through 20mm conduit and cable trays with far less effort. The TPE jacket stays flexible in Nairobi's cool nights and Mombasa's heat alike. Two handling rules matter: always pull by the connector housing rather than the cable body, and never crush or kink the cable at sharp corners.

An extender kit needs a transmitter box, a receiver box, two power supplies, and Cat6 cabling, then often introduces handshake delays or HDCP negotiation failures. The UGREEN HD178 is one continuous cable with nothing in the middle, so there are fewer parts to fail and nothing to configure. Total cost usually lands lower once you count both boxes and their adapters. Extender kits still win where you need runs beyond 50 metres or must route through an existing structured cabling patch panel.

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Every cable ships with the 6-month Mascom warranty stated above. Buyers across Kenya rely on Mascom International for accurate specifications, current Kenyan pricing, and installation advice from a team that has wired conference rooms, sanctuaries, and lecture halls across the country.