> For the complete documentation index, see [llms.txt](https://8bitmods.gitbook.io/manuals/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://8bitmods.gitbook.io/manuals/bitlink-dc-adapter/getting-started/hardware-overview.md).
# Hardware overview
The adapter is shaped like a Jump Pack and fits the controller's rear expansion slot. The buttons, LEDs and USB-C port are on the end that sits outside the controller.
USB-C end
| Part | Description |
| ---------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Power button | Right of the USB-C port. On, off, pairing and WebUI. See [Buttons and combos](/manuals/bitlink-dc-adapter/getting-started/buttons-and-combos.md). |
| Sync button | Left of the USB-C port. Link mode, memory card and reconnect. See [Buttons and combos](/manuals/bitlink-dc-adapter/getting-started/buttons-and-combos.md). |
| LEDs | Four RGB LEDs, two each side of the USB-C port. See [The LEDs explained](/manuals/bitlink-dc-adapter/getting-started/leds.md). |
| USB-C port | Charging, the wired link to the dongle, and firmware updates. |
| Controller cable | Connects the adapter to the controller's internal connector. |
The adapter also has a rumble motor and a motion sensor built in.
---
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