Product
Four DUTs. One box. Full control.
NablaBox lets remote developers and test engineers work on up to four devices under test (DUTs) as if they were sitting next to them – without exposing those devices to any outside network.
Each DUT slot provides switchable power, a serial console and a port on an isolated, switched network segment. The gateway itself connects outbound to your NetBird network, so the lab needs no inbound firewall rules at all.

Switch each DUT on and off from the browser, a script or your CI. Select 5 V, 12 V or 24 V per slot; a power cycle doubles as a hard reset.
Open the DUT’s serial console directly in the web UI, or bridge it to any tool that expects a plain stdio console – LAVA included. One session per DUT at a time, so a human and an automated job never fight over the same line.
DUTs live on their own switched segment with DHCP and an NFS export for network boot. It is never bridged to the uplink unless you explicitly enable IP forwarding.
Pick tbot test cases in the web UI, run them against a DUT and follow the output live. Every run is kept with its full log and result.
Technical specifications
| DUT slots | 4 independent slots (PORT 1–4): power, console and network per slot |
|---|---|
| DUT power | M12 locking connector per slot; 5 V (max 5 A) / 12 V (max 3.5 A) / 24 V (max 2.5 A), one rail active at a time, software-switched |
| DUT console | 1× USB-A per slot for a USB-to-UART adapter; serial console in the browser and via CLI |
| DUT network | 4× Gigabit Ethernet, internally switched, isolated segment with DHCP; NFS export for network boot |
| Uplink | 1× Gigabit Ethernet (rear); static IPv4/IPv6 or DHCP |
| Remote access | NetBird mesh VPN (WireGuard-based), outbound connection only – no inbound ports needed |
| USB | 1× USB 3.0 host (front); 1× USB-B management console (rear) |
| Compute | ARM SoC (Raspberry Pi Compute Module class), onboard eMMC, no Wi-Fi/Bluetooth radio |
| Power input | 24 V DC (rear), front-panel power switch |
| Indicators | Power, network link, one status LED per DUT slot |
| Enclosure | 1U 19″ rack-mount or desktop – same electronics and panel layout |
| Operating temperature | −20 °C to +60 °C |
| Software | Nablix – open-source Yocto Project based Linux distribution; A/B updates with SWUpdate |
| Management | Web UI, REST API (JSON, JWT), command-line tools |
Preliminary specifications. Dimensions, weight and regulatory certification are pending final characterization.

Two enclosures
Choose the 1U 19″ rack-mount version for the lab or the desktop version for the bench. Both share the same electronics and front/rear panel layout.