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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →BliKVM v4 is a browser-controlled KVM-over-IP device for remotely managing a computer at the hardware level. It can provide keyboard, mouse, video, and virtual mass-storage access so you can work with a server or workstation before its operating system is running—for example, to enter BIOS or UEFI settings or reinstall an OS. Setup requires a video connection, a USB data connection to the computer, network access, and an appropriate power source. Its main trade-off is that BliKVM says v4 does not support H.264 mode and positions it primarily for LAN use.
What BliKVM v4 does
BliKVM v4 emulates a monitor, keyboard, mouse, and mass-storage device, then makes those controls available through a browser. Because it operates independently of the controlled computer’s operating system, it is intended for tasks such as checking firmware settings, troubleshooting startup problems, restarting a system, and installing an operating system without someone physically at the machine. BliKVM describes it as a Linux-based, open-source device and says the controlled computer does not need dedicated software installed. BliKVM v4 guide BliKVM GitHub README
This is hardware-level remote access, not a replacement for ordinary remote-desktop software once an operating system is running. Its value is being able to interact with the machine outside that operating system’s normal remote-access tools.
What the specifications mean in practice
The manufacturer’s datasheet lists an Allwinner H616/H313 SoC, 1 GB of RAM, HDMI input with HDMI loop-through, USB-PC emulation, ATX control, Wi-Fi and Bluetooth, microSD storage, and a 1.33-inch 240 × 240 LCD. It lists MJPEG compression and input video up to 4K at 30 Hz. These are published specifications, not independently verified performance results. BliKVM v4 datasheet
#1 Best Overall
- BliKVMv4 Allwinner KVM Over IP PoE HDMI Loop Out Process Control Operation and Maintenance for IPKVM
- - BliKVM v4 is a production-ready, plug and play KVM-over-IP device that offers professional users a convenient solution for remote server or workstation management.
- It is based on Linux and fully open source. With BliKVM, you can easily power on/off, restart your computer, configure UEFI/BIOS settings, and perform OS reinstallation using an emulated Mass Storage Device.
- BliKVM simulates a keyboard, mouse, and monitor, all accessible through a web browser, ensuring a seamless user experience.
- Its hardware-level access guarantees independence from specific remote ports, protocols, or services, making it a highly flexible and reliable remote management solution for professionals.
- HDMI input: carries the computer’s video to BliKVM for browser viewing.
- HDMI loop-through: lets the video signal continue to a local display, which is useful when a technician is also near the machine.
- USB-PC emulation: provides the keyboard, mouse, and virtual storage functions to the controlled computer.
- ATX control: supports power-button and reset control when connected to the computer’s front-panel header using the supplied adapter and leads.
- Serial console: the guide documents serial console access through the 5V port at a default baud rate of 115200. Using that port for console communication does not eliminate the board’s power requirement. BliKVM v4 guide
The datasheet lists dimensions of 100 × 134 × 44.4 mm, weight of 0.45 kg, operating temperature of 0–70°C, storage temperature of −20–60°C, and power consumption up to 15 W. Separately, the guide reports around 4 W in its example of loop-out with one web access; that scenario-specific figure should not be treated as the device’s maximum or as a universal measurement. BliKVM v4 datasheet BliKVM v4 guide
Check the video and network fit before choosing v4
The most important caveat is video encoding and intended network use. BliKVM’s version comparison says v4 does not support H.264 mode and recommends v1, v2, or v3 when internet access is needed. The manufacturer characterizes v4 as its most comprehensive choice for LAN use. This is the manufacturer’s guidance; the comparison does not provide independent tests showing how a particular model will perform on your network. BliKVM version comparison
Rank #2
- KVM Switch 2 Monitors 2 Computers Display Port: Use just one set of keyboard, mouse, and up to four USB devices to switch between two computers.Note: Each computer must be connected to the KVM via 2 DP cables and 1 USB-A cable to share monitors and USB devices. To use two monitors, your computer must have two DP ports. The DP A and DP B ports on the product must be connected to the same computer. Adapter cables are not recommended
- 4K@144Hz Dual Monitor KVM Switch: This KVM switches supports resolutions up to 4K@144Hz and 8K@60Hz, with backward compatibility for 4K@120Hz, 4K@60Hz, 2K, etc. The KVM supports Extended Mode and Mirror Mode.Extended Mode allows you to move application windows to the other screen, providing ample space for efficient multitasking. In Mirror Mode, the main screen's image is duplicated onto the secondary screen, ideal for presentations or showcasing work
- Two Switching Methods: The KVM switch DisplayPort is plug-and-play, requiring no software drivers. It offers two switching methods:1. Press the "Select" button for one-click switching.2. Connect the remote switch via an extension cable. The extension cable helps organize devices and cables, allowing you to hide the KVM switch 2 computers and place the remote switch within easy reach to save desk space and reduce clutter.Note: Hotkey switching is not supported
- USB 3.0 KVM Switch: This Display Port KVM switch allows up to two computers to share four USB devices simultaneously, making your workspace cleaner and more efficient. USB 3.0 transfer speeds reach up to 5 Gbps and are backward compatible with USB 2.0 and USB 1.1 devices.Note: If you wish to use high-performance USB devices such as webcams, please contact our customer support to confirm compatibility
- Stable Operation: The 2 computer 2 monitor KVM switch comes with a 12V DC power adapter. With external power, USB devices receive a stable operating environment through the switch.Package includes: KVM switch,desktop controller, 2× USB 3.0 cables,DC12V power adapter, user manual (DP cables are not included).If you encounter any issues during use, we have a professional technical team ready to help solve any problems
The comparison lists v4 input up to 3840 × 2160 at 30 Hz, along with HDMI loop-through, PoE, DC input, and serial-console features. It identifies v4 as Allwinner-based, unlike v1 and v2, which use Raspberry Pi CM4, and v3, which uses Raspberry Pi 4B. Earlier models have lower listed capture resolutions. Consider the actual remote-access path and encoding needs—not just the maximum resolution—when comparing models.
| Decision point | BliKVM v4 information |
|---|---|
| Capture resolution listed by manufacturer | Up to 3840 × 2160 at 30 Hz |
| Video compression | MJPEG listed in the datasheet; H.264 mode is not supported, according to BliKVM’s comparison |
| Network context recommended by manufacturer | LAN use; BliKVM recommends v1, v2, or v3 when internet access is needed |
| Platform | Allwinner H616/H313 |
| Power choices listed | 5V 3A via the 5V/USB-PC arrangement, 12V 2A DC, or IEEE 802.3af PoE at 48V DC |
| Other listed features | HDMI loop-through, ATX control, Wi-Fi and Bluetooth, serial console, and microSD storage |
Feature listings describe capabilities, not a guarantee that the device will suit every remote connection. If you need to reach a system over the internet, treat BliKVM’s recommendation as a reason to compare the other versions and their documented options before buying.
Rank #3
- 【8K HDMI KVM Switch 1 Monitor 4 Computers】The 4 port HDMI KVM switch allows you to connect up to four different devices, including computers, laptops, and gaming consoles, all to a single monitor, keyboard, and mouse. This setup not only saves space but also streamlines your workflow, making it easy for multi-device environments.
- 【8K60Hz & 4K120Hz Ultra-HD Visuals】Experience visuals that pop with full support for 8K (7680 x 4320) at 60Hz—The KVM switch is ideal for video editors working on high-res footage, graphic designers refining intricate details, or gamers chasing immersive, lag-free gameplay. This HDMI KVM switch 1 monitor 4 computers also handles 4K at a buttery-smooth 120Hz, ensuring crisp motion whether you’re scrolling through complex spreadsheets or racing through game levels. Note: To unlock 8K performance, your PC, monitor, and HDMI cables must all support 8K resolution.
- 【USB 3.0 Data Transfer】Stay productive with built-in USB 3.0 ports that deliver data transfer speeds up to 5Gbps—this 4 computer KVM switch makes it easy to share large files (like video projects or photo libraries) between your four devices takes seconds, not minutes. You can also connect essential peripherals: external hard drive, printer, scanner, or keyboard/mouse dongles—no lag, no compatibility hiccups. Fully backward compatible with USB 2.0 devices, so your trusted peripherals won’t become obsolete.
- 【Seamless Switching Between Devices】With the KVM switcher, you can effortlessly transition between systems with a single button press or an external desktop controller. This flexibility ensures a smooth and uninterrupted workflow, allowing you to work more efficiently and effectively. Note: Hotkey switching is not supported.
- 【Space-Saving & Plug-and-Play】Its compact, sleek design tucks neatly next to your monitor or behind your desk—cutting down on cable clutter and freeing up valuable desk space. Forget complicated software or extra drivers—this KVM switch is ready to use right out of the box. Just connect your four devices, monitor, keyboard, and mouse to the switch, and you’re set. It’s designed for hassle-free setup, so you can spend less time troubleshooting and more time getting things done.
What you need to install it
Plan for the connections that match your setup. The guide calls for one or two HDMI cables, Ethernet cable or cables, and a USB-C-to-USB-A cable for mouse and keyboard data, depending on the arrangement. The v4 package contents listed in the guide are the device, Wi-Fi antenna, ATX adapter board, ATX Dupont cables, rack mounting ears, screws, and silicone bumpers. Package contents and whether a power supply is included can change, so check the current product listing rather than assuming an accessory is in the box. BliKVM v4 guide
Choose a suitable power method
The datasheet lists three options: 5V 3A via the 5V/USB-PC arrangement, 12V 2A DC, or IEEE 802.3af PoE at 48V DC. The guide warns that a PC USB port alone may not provide the specified 3A, although power from the controlled computer may suffice in some configurations. Follow the documented arrangement for your setup; do not assume any USB port can supply enough current. BliKVM v4 datasheet BliKVM v4 guide
Rank #4
- 【KVM Switch 1 Monitors 2 Computers】This HDMI KVM Switch with two HDMI ports allows control of two computers, enabling them to share a single monitor along with keyboard and mouse. It's complete USB switch and HDMI switch rolled into one. This KVM Switch also supports various input devices such as PCs, Laptops, PS4, etc. It is compatible with various operating systems including Windows 7/8/10/11/Vista/XP, Linux, Mac, and more.
- 【Four USB 3.0 Ports (3×USB-A + 1×USB-C)】 This KVM switch features 4 USB 3.0 ports with ultra-fast data transfer speeds up to 5Gbps, including 3 USB-A ports and 1 USB-C port for broader device compatibility. It allows you to seamlessly share peripherals between two computers, reducing cable clutter and improving workspace efficiency. Perfect for connecting and sharing USB devices such as keyboards, mice, scanners, printers, flash drives, headsets, and webcams. The switch automatically detects and recognizes connected devices for stable and reliable performance.
- 【4K Resolution & HDCP 2.2】HDMI KVM Switch supports stunning 4K resolution at 60Hz, ensuring crystal-clear and highly detailed visuals for your monitors. Additionally, it is HDCP 2.2 compliant, allowing you to seamlessly view HDCP-protected content on your monitors without any interruptions. It also supports 4K@30Hz, 2K, 3D, and 1080P, offering flexibility for various display needs. This guarantees both exceptional image quality and a smooth, secure multimedia experience.
- 【Two Ways of Switching】4K HDMI KVM Switch features two switching options: On-KVM Switch Button and Wired Remote Switch. The Wired Remote Switch allows you to place the HDMI KVM switch in hidden or distant location, keeping your desk tidy. Simply place the remote control within easy reach on your desk for quick access. With a press, you can switch between computers seamlessly, enhancing productivity and reducing clutter on your monitors.
- 【Adaptive EDID & Plug and Play】This USB 3.0 HDMI KVM Switch features Adaptive EDID, ensuring stable and smooth image transmission by automatically optimizing display settings on your monitors. Easy to install, this HDMI KVM switch requires no power supply or driver software—just plug it in and connect all cables for seamless operation between two computers and one monitor.
Use the v4-specific software image
BliKVM’s flashing guide identifies a separate Allwinner image for v4. Do not use a Raspberry Pi-based BliKVM or PiKVM image on the assumption that it is interchangeable; follow the v4 image instructions in the official OS flashing guide.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Connect the device to the computer
- Mount and power v4. Place it near the managed computer or in a rack, then use one of the documented power options appropriate to your installation.
- Connect video. Run HDMI from the computer’s video output to BliKVM’s HDMI input. If you want a local monitor to continue showing the signal, connect the HDMI loop-through as directed in the guide.
- Connect USB data. Use the USB-C-to-USB-A cable for the computer-side keyboard and mouse data connection. This is separate from choosing an adequate power source.
- Connect the network. Use Ethernet for the network arrangement described in the guide, or configure Wi-Fi if that better fits your deployment. For reliable remote administration, confirm that the device is reachable from the browser and network location you intend to use.
- Wire optional power and serial controls. If you need remote power or reset buttons, connect the ATX adapter board and Dupont leads to the appropriate motherboard header. If using serial console, follow the guide’s port and wiring directions and set the console to 115200 baud unless your target requires otherwise.
- Flash the v4 image and complete configuration. Use the separate Allwinner image and the guide’s instructions to prepare the device, then open its browser interface and verify video and input control before relying on it for unattended access.
Is BliKVM v4 the right choice?
V4 is a sensible candidate when you want a hardware-level KVM-over-IP device for LAN-based management, value the listed 4K-at-30-Hz input and HDMI loop-through, and can provide the required power and cabling. Its Allwinner platform means its software image is distinct from Raspberry Pi-based variants.
Compare other BliKVM versions if internet access is central to your use case or H.264 support is a requirement: BliKVM itself recommends v1, v2, or v3 for internet access and says v4 lacks H.264 mode. The manufacturer comparison can help narrow the feature differences, but it does not establish which model will perform best on a specific network or workload. BliKVM version comparison
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