{{ variable.name }}
A USB-C wireless transmitter for corporate meeting rooms, classrooms, training rooms and BYOM collaboration spaces. It sends 3840×2160 content over dual-band Wi-Fi and weighs 87±2 g.


The PTB1312 is a Type C wireless transmitter that sends up to 3840×2160 video from a Windows or macOS laptop to a receiving display system. It runs Linux 4.19 on 512 MB DDR and 8 GB eMMC, connects over dual-band 2.4/5 GHz Wi-Fi at up to 867 Mbps, starts in ≤15 seconds and carries audio through UAC. A configurable button can be set to freeze casting or switch BYOM source, and the whole unit runs on 5 V, 4 W.
| Model | PTB1312 |
|---|---|
| Operating system | Linux 4.19 |
| Memory | 512 MB DDR |
| Storage | 8 GB eMMC |
| Wireless | Wi-Fi dual-band 2.4/5 GHz, up to 867 Mbps |
| Input interface | USB-C |
| Maximum transmission resolution | 3840×2160 |
| Transmission frame rate | ≤30 fps |
| Audio | UAC supported |
| Startup time | ≤15 seconds |
| Supported host systems | Windows, macOS |
| Power | 5 V, 4 W |
| Material | Aluminum alloy |
| Weight | 87±2 g |
| Button | Configurable for freeze casting or BYOM source switching |
The BYOM transmitter line is currently specified around the PTB1312 with its fixed USB-C input, 3840×2160 maximum transmission resolution and configurable button. Buyers who need the action button mapped to a specific room behaviour can request freeze casting or BYOM source switching as the factory setting. Partners integrating the transmitter into their own display or AV platform can discuss hardware and software customization with the manufacturer's engineering team.
The body is built in aluminum alloy, which keeps the unit rigid while holding weight at 87±2 g.
One USB-C input carries the source signal; the device draws 5 V, 4 W.
Linux 4.19 with 512 MB DDR and 8 GB eMMC runs the transmission stack and the configurable button logic.
Dual-band 2.4/5 GHz Wi-Fi rated to 867 Mbps handles the wireless link to the receiving system.
Presenters plug a USB-C laptop in and share content at up to 3840×2160 without cable swapping at the table.
Instructors move between rooms with an 87±2 g transmitter and start within ≤15 seconds.
The configurable button can switch the BYOM source, so hybrid rooms hand over cleanly between presenters.
4K output at ≤30 fps supports product demonstrations, video playback and screen sharing for visiting customers.
tranScreen designs, develops and manufactures its wireless interaction products in-house, which allows standardized units and customized configurations to be produced on the same engineering base. For the PTB1312, the configurable button can be set for freeze casting or BYOM source switching before delivery, and partners working on IFPD integration, display product development or OEM/SDK projects can request hardware and software customization against their platform requirements.
Application: wireless presentation with one-to-multiple function, transmitting video, audio, touch-back control, camera and microphone signals for meeting rooms, classrooms and exhibition halls.
Result after three years of use: synchronous audio and video casting in one connection, plus multi-screen split display so several sources can appear on screen at the same time. The customer reports that messy cabling and repeated HDMI/audio plugging are eliminated and pre-meeting preparation time is greatly cut.
It is compatible with Windows and macOS hosts and takes the source signal through its USB-C input.
Maximum transmission resolution is 3840×2160 and the transmission frame rate is ≤30 fps.
Startup time is ≤15 seconds from power-up to operation.
Yes. UAC is supported, so audio travels with the presentation signal.
It runs on 5 V, 4 W.
The button is configurable for freeze casting or BYOM source switching, depending on how the room is used.
Dual-band 2.4/5 GHz Wi-Fi with a link rate of up to 867 Mbps.
Sample quantities, project pricing and delivery schedules are quoted per project. Contact the sales team with your room count, host device mix and target market.
Shenzhen tranScreen Technology Co.,Ltd. Room B322 3/F, Block B, No. 168, BAO Yuan Road, BAO An District, Shenzhen, Guangdong Province, China, 518102. Product catalog available on request.
SEO Title: Type C 4K BYOM Transmitter PTB1312 | Plug-and-Play 4K Wireless Casting · Meta Description: PTB1312 Type C 4K BYOM Transmitter streams 3840x2160 over dual-band Wi-Fi at up to 867 Mbps. USB-C input, UAC audio, ≤15 s startup, Windows and macOS. · URL Slug: type-c-4k-byom-transmitter-ptb1312 · H1: Plug-and-Play Type C 4K BYOM Transmitter with One-Click Casting