Do you need to connect source and a monitor or TV up to 70 meters away?No, it's not impossible ... all you need is an HDMI extender.Here is one at a good price.Anyone who wants to connect two audio-video devices at significant distances must use a so-called "HDMI extender", since even the best cables - which really cost a lot - have a length limit beyond which the degradation in images and performance becomes consistent.HDMI is an extremely popular standard as a digital connectivity solution between audio-visual devices, however it imposes important limits in terms of range.For a consumer user this is not a big deal as cables that are a few meters long are quite cheap, but those over 10 meters cost a lot.And, due to signal degradation over long distances, HDMI cables of more than 30 meters are very rare.We recently looked at several models of TECHly's HDMI Extenders, each valid in certain circumstances.The latest model arrived in the editorial office is the 4K HDMI Extender Amplifier up to 70m on Cat.6 / 6A / 7 cable, capable of carrying up to 70 meters an audio-video signal without compression.This model not only allows the signal to be transmitted over a really consistent distance, but also ensures that the same signal is transferred to the receiver without loss of quality and without latency.This TECHly HDMI extender model also allows you to connect up to 10 receivers in cascade, sending them the same contents of a single source.As for the supported standards we have HDMI 2.0 and HDCP 2.2, with the contents that can be transmitted to the receivers up to 4Kx2K @ 60Hz resolution, starting from 480i @ 60Hz resolution.This system also supports HDR (YUV4: 4: 4) content with a maximum transmission rate of 18Gbps over Cat. 6, Cat. 6A or Cat. 7 Ethernet cables. The system also implements lightning, surge and antistatic protections, and It is sold as a kit with a receiver and a transmitter, both with metal housing and extremely compact dimensions (106.36 x 98.73 x 26.19 mm).Specifically, the kit consists of an HDMI to LAN transmitter, a LAN to HDMI receiver, two 5V / 2A power supplies, a blaster extension cable and an extension cable for the receiver, in addition to the user manual.The transmitter (TX) offers, as a set of ports, two HDMI ports, one in output and one in input, two 3.5mm ports - in output and input - for infrared signals, an Ethernet output connector and the power connector.It must be installed clearly near the source and can send its contents through the connection via Ethernet.Conversely, the kit's LAN to HDMI receiver allows data to be collected on the Ethernet port and transmitted to a playback device via HDMI.For this purpose it has an Ethernet input, 3.5mm input and output for infrared signals and an HDMI output port to be connected to the monitor / TV or various type of device for signal reproduction.In addition it is possible to extract the audio through the optical connection via the S / PDIF port for connections to dolby surround amplifiers.LAN to HDMI receiverManaging playback 70 meters away can be tricky, to say the least.And that is why both the transmitter and the receiver are equipped with 3.5mm ports for bidirectional IR passback with a frequency of 20-60KHz.In this way we can use a remote control or a remote management device near the playback device, meters away from the source, as if we were very close to it.The 4K HDMI Extender Amplifier Kit up to 70m on Cat.6 / 6A / 7 Cable is sold on Manhattan Shop at a price of 209.39 euros in the version compatible with 4K resolution at 60Hz (and below).As we have already written, the kit can be expanded with a further nine receivers to be connected in cascade and purchased separately, in order to share the same signal with multiple devices at the same time.