PORTTA HDMl Video Wall Controller 2x2 4K, Video Wall Processor with 11 Splicing Modes, RS232, 180° Rotate, Audio Extractor, 2x2,1x2,1x3,1x4,2x1,3x1x4x1, 4 tv Screens into 1 Wall Display

Worked like a charm! If this is a replacement and you were using a firestick you will have to reprogram the firestick on the screens as well. Easy!

I wanted to wait for a bit to see if it lasts, I've had it for about 5 months, it's a good one. See the picture, 4 75 inch tv's

The device was easy to setup and works well. Documentation is sparse but it's not hard to figure out the operation. It says 4KHD but the fire stick that I used warned that the device could not display at its highest resolution and offered a lower one. Overall, a good value for the money.

Very good product for the money. I used it right now for a 1 x 2 side by side configuration and it works great. It would have got 5 stars but it pixelates (About every 30 mins) for about 10 secs. Not bad at all and still worth the money.

Works great for the 4 split screen tv set up I put in my son’s room. Cheap alternative to the several hundred door set ups so the average family of 7 can afford nice things

It’s not recommended to use professionally, not easy to setup , button functionality is not good

Worked perfectly!!! Easy to use. Plug and play!!! Follow directions and you will have no issues. Would highly recommend.

I bought this to easily switch inputs between my computer and my Nintendo Switch since my projector only has one HDMI input. I don't have 4k monitors for my PC, my projector doesn't support 4k, and neither does my Nintendo Switch. So far, it seems to work perfectly even though I purchased a used/returned item. I'm happy with it but will update if there are problems down the line.

The image outpubwas very blurry. Connected this to a 4K media player with 4x FHD images stitched together to create a 4k image. Then each output was connected to a FHD screen. It is blurry, so have ordered a Orei unit to replace it

Excelente producto, cumple con lo que requería, que era sacar dos salidas de una sola fuente.

Brilliant little product. I'm feeding various digital inputs into a quad amp, this little box takes up to 96khz input which is perfect for me. It splits the output to a Bluetooth transmitter and a minidisc recorder. The MD recorder shows me the input frequency and the box is just sending what it's receiving, not down converting. Bonus, it's provided some sort of cleaning to the signal. I send a dab radio to the amp via coax digital. This is then sent to the MD recorder. Without the box, when recording from dab to MD the dab signal drops 2 bars. With this box it doesn't. Yes I have an odd setup which doesn't apply to anyone else but just to say I'm impressed with this little box.

Je l'utilise pour connecter 3 appareils à mon téléviseur qui n'a qu'une prise Toslink : - ma barre de son Bose Solo 5 - boitier émetteur appareils auditifs - enceinte TV amplifiée sans fil. Celà a fonctionné sans problème dès l'installation. Par contre moi je n'aime pas l'alimentation par usb, je préfère une prise électrique.

Habe dieses Teil bestellt um der Optischer Kabel Anschluss zu verdoppeln. Es funktioniert einwandfrei, der Kabel für Strom Versorgung an USB Anschluss des Fernseher angeschlossen, beide Optische Kabel von Audio System und Soundbar angeschlossen, das Teil an Fernseher angeschlossen. Nicht vergessen den kleinen Schalter auf On zu schalten. Alle drei Anschlüsse des Teils sind funktionsfähig gleichzeitig. Bin erstmal zufrieden. Mal sehen, wie lange das Teil sein Dienst einhällt...