Operating a headless PC requires remote desktop access, but in many cases compositing the desktop in high resolution is possible only when the computer detects a connected display. fit-Headless is a miniature HDMI plug that emulates a high-definition display connected to the PC. The headless PC identifies fit-Headless as a connected display and enables the GPU thus allowing remote desktop compositing at high resolution. fit-Headless works with any HDMI capable PC on any operating system and requires no software installation nor configuration. fit-Headless does not require external power.