# Markerless Mocap Hardware & Camera Requirements

AR 51 is a markerless, camera-based motion-capture system: an array of machine-vision cameras feeds a GPU AI server that reconstructs skeletons in real time. This section covers the hardware you need to run it — the camera systems (the 1.3 MP, 5 MP, and 9 MP tiers), the AI server, calibration tools, and the network gear that connects them. Requirements are organized by **capture-quality tier**, so you can size either a single-PC or a multi-PC deployment.

By the end of this section you'll know which camera tier and server your deployment needs and how the pieces connect.

![AR 51 capture hardware — markerless machine-vision cameras and the AI server](./img/hardware-kit-dark.webp)


## Camera systems at a glance

Every tier is **multi-PC** — add as many capture servers as your capture volume needs.

| System | Frame rate | Cameras per server | Best for |
|---|---|---|---|
| [1.3 MP](/docs/hardware/camera-1-3mp) · PoE | 90 fps | up to 12 | Budget setups, smaller capture volumes |
| [5 MP](/docs/hardware/camera-5mp) | 120–240 fps | up to 12 | Standard real-time production |
| [9 MP](/docs/hardware/camera-9mp) | 120 fps | up to 8 | Large capture areas, higher fidelity |

## Next steps

- [Compare camera systems](/docs/hardware/camera-5mp)
- [Mount & place cameras](/docs/physical-setup/camera-mounting)
- [Set up the network](/docs/network/network-overview)