The LinkPi ENC1Pro is a compact, high-performance 4Kp60 HDMI video encoder designed for professional live streaming and broadcasting applications. It supports two HDMI 2.0 inputs and outputs with resolutions up to 4K @ 60fps, and is equipped with a built-in Tally light for studio use. Powered by an unnamed quad-core Arm Cortex-A55 processor coupled with 4GB DDR4 RAM and 8GB eMMC flash, the device supports H.265 (HEVC), H.264, and MJPEG compression formats. It is compatible with various streaming protocols, including NDI HX (license required), RTSP, RTMP, SRT, HTTP, HLS, and ONVIF.
Other features include real-time picture-in-picture, multi-view, watermarking, subtitles, audio mixing, and video recording in formats such as MP4, MOV, and MKV. The ENC1Pro also supports AAC, MP3, OPUS, and other audio codecs, and includes 3.5mm stereo audio I/O alongside HDMI audio. It also offers flexible network connectivity with Gigabit Ethernet, USB expansion for 4G/5G/Wi-Fi modules, and supports remote management via a web interface. It’s designed for live production, remote broadcasting, education, game streaming, and studio workflows.
LinkPi ENC1Pro Specifications:
- SoC – Unnamed, but potentially from Hisilicon
- CPU – Arm Cortex-A55 quad-core processor @ 1.4 GHz with 32 KB I-cache + 32 KB D-cache
- VPU
- Encoding – H.265/HEVC Main, H.264/AVC Baseline / Main / High, MJPEG/JPEG Baseline
- Decoding – H.265, H.264, MJPEG/JPEG
- Bit-rate – up to 160 Mbps per channel; CBR / VBR / AVBR / FIXQP; 1 – 60 fps
- Memory – 4 GB DDR4
- Storage – 8 GB eMMC flash (~6 GB user space for recording)
- Video input – HDMI 2.0 input up to 4K @ 60fps
- Video output
- HDMI 2.0 loop-out up to 4K @ 60fps (it outputs the HDMI input video)
- HDMI 2.0 output up to 4K @ 60fps
- Audio
- Stereo audio input and output over HDMI (48 kHz max)
- 3.5 mm stereo line-in & line-out jacks
- Audio codecs – AAC, MP3, MPEG-2, PCMA, OPUS @ 48 / 44.1 / 32 / 16 / 8 kHz
- Display – LCD work status display
- Networking
- Gigabit Ethernet RJ45 port with PoE support
- Support for Wi-Fi 6, 4G LTE (Huawei E8372h, ZTE MF833U1) or 5G modems (ZTE F50, LinkPi 5GCPE) via USB dongle
- Streaming & control protocols – NDI HX (license req.), SRT, RTMP/RTMPS, RTSP, HLS, HTTP, UDP uni/multicast, ONVIF, GB28181
- USB – USB Type-A port for 4G/5G/Wi-Fi 6
- Misc
- Hot shoe Interface accessories like lights or mics
- Tally lights for work status
- Reset and Menu buttons
- Power – 12V / 2A DC barrel jack; < 15 W typical
- Temperature – 0°C to 70°C
- Dimensions – 129 × 104 × 34 mm
- Weight – 447 grams
The device has support for NDI that converts video signals (typically from HDMI or SDI sources) into NDI (Network Device Interface) format for transmission over IP networks. However, you need to purchase a separate license to enable NDI functionality on this device.
In terms of software, the device features a web-based interface for remote configuration, firmware upgrades, live parameter adjustments, and network & password management. The device also supports real-time video mixing functions, including picture-in-picture, logo overlay, watermark insertion, subtitles, and scrolling text. You can also customize fonts and upload logos for branding purposes. Additionally, the system supports multiple stream outputs and protocol switching without rebooting. The Wiki has more details, although nothing specific to the ENC1 Pro per se.
It’s not the first LinkPi encoder around, and we previously wrote about the Link Pi ENC5 v2 video encoder with 5 HDMI inputs supporting up to 4K @ 30fps, two audio jacks, Gigabit Ethernet, and a USB 3.0 port. Another alternative is the Mekotronics R58-4×4 3U Rockchip RK3588-based video encoder with four SDI inputs and four SDI loop outputs.
The LinkPi ENC1Pro can be purchased from AliExpress for $322.69 before taxes and shipping for the standalone unit (device + power adapter), with optional higher-priced bundles that add accessories like a Wi-Fi 6 module or an SDI to HDMI adapter. It’s also available on the Youyeetoo store for $277.67.
Debashis Das is a technical content writer and embedded engineer with over five years of experience in the industry. With expertise in Embedded C, PCB Design, and SEO optimization, he effectively blends difficult technical topics with clear communication
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