Proxisky DC/USB Saddle Hub
The Proxisky DC/USB Saddle Hub is a saddle-mounted power and data distribution hub designed for astrophotography rigs that need clean cable routing, regulated outputs, and reliable connectivity. By placing power and USB ports directly on the saddle, it helps reduce cable drag and snags during slews and tracking.
Key benefits
- Saddle-mounted layout for shorter cable runs and cleaner routing
- Regulated outputs for stable accessory power (12V DC and 5V USB)
- High-speed USB ports for imaging accessories
- Comprehensive electrical protection for sensitive astronomy equipment
- Wide operating environment suitable for outdoor sessions
Compatibility
Supported dovetails
- Vixen
- Losmandy (side installation supported for Losmandy)
Supported mounts (with adapters)
- All Proxisky mounts
- ZWO AM5 / AM3
- WD-17 / WD-20
Important: Select the correct adapter option for your mount when ordering. Proxisky lists multiple versions/adapter choices for this hub (colour + mount-specific adapter selections).
Connections
Input
| Type | Standard | Details |
|---|---|---|
| DC Input | DC 5.5 × 2.1mm | For 12V–15V DC power input |
| USB Input | USB 3.1 Type-B | For connection to PC, data and power delivery supported |
Output
| Type | Standard | Quantity | Details |
|---|---|---|---|
| DC Output | DC 5.5 × 2.1mm | 6 | 12V, max 6A, regulated |
| USB 3.1 Output | USB 3.1 | 2 | 5V, max 3A, regulated, high-speed data transfer |
| USB 2.0 Output | USB 2.0 | 2 | 5V, max 3A, regulated, suitable for most USB devices |
Power specifications
| Parameter | Specification | Detail |
|---|---|---|
| Total power | 120W | Max power consumption: 12V × 10A = 120W |
| DC output | 12V, 6A | Single port max current: 6A, regulated |
| USB output | 5V, 3A | Single port max current: 3A, regulated |
Notes for system planning: total available power is shared across connected devices. Choose a quality 12V supply within the supported 12–15V input range, sized for your total load.
Safety & protection
Built-in protection is designed to safeguard mounts and accessories used in demanding outdoor imaging setups.
- Protection against reverse power
- Protection against over-voltage and under-voltage
- Protection against overcurrent
- Protection against backflow current
- Protection against surge and short circuit
- Protection against electrostatic discharge
- Startup inrush-current protection to help avoid damage at power-on
These protections are also referenced in Proxisky’s product information and community announcements for the Saddle Hub.
Operating environment
| Condition | Specification |
|---|---|
| Ambient temperature | -35°C to +45°C |
| Humidity levels | Up to 99% |
Typical use cases
- Cooled camera + guide camera + focuser + filter wheel setups
- Cleaner cable routing for harmonic/strain-wave mounts and compact imaging rigs
- Reducing snag risk when tracking near the meridian
- Keeping USB and 12V distribution close to the payload for easier troubleshooting
FAQ
Does it work with ZWO AM5 / AM3?
Yes, Proxisky lists compatibility with ZWO AM5/AM3 when the correct adapter is selected.
Do I need an adapter?
For non-Proxisky mounts, an adapter is typically required. Proxisky lists multiple adapter options depending on your mount model. If your setup is a Proxisky mount family variant, choose the matching version/colour and the correct adapter option where applicable.
What are the port counts?
Output includes 6× DC 5.5×2.1mm, plus 2× USB 3.