Surface Pro 3 | 4 in 1 Adapter
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The Juiced Systems 4-in-1 Surface Pro 3 Adapter adds two USB 3.0 ports and dual SD/microSD card readers to your Microsoft Surface Pro 3 through a single contoured connector — no drivers, no bulk, no blocked buttons. Engineered to match the Surface Pro 3's chassis profile, it slides flush against the device and turns a single underused port into a full desktop workstation.
Specifications
| Interface (host) | Microsoft Surface Pro 3 proprietary USB 3.0 port |
|---|---|
| USB ports | 2 × USB 3.0 Type-A (SuperSpeed, 5 Gbps) |
| Card reader | 1 × SD (SDHC/SDXC) + 1 × microSD |
| Transfer rate | Up to 5 Gbps (USB 3.0) |
| Housing | Custom-molded flush-fit polycarbonate |
| Power | Bus-powered (no external adapter needed) |
| Drivers | Plug and play — Windows 10/11 native |
| Warranty | 1-year Juiced Systems limited warranty |
Key Features
- Two SuperSpeed USB 3.0 ports — backwards compatible with USB 2.0/1.1, rated 5 Gbps for external SSDs, hard drives, and peripherals.
- Simultaneous SD + microSD card slots — offload DSLR, drone, and GoPro footage without dongle-swapping.
- Flush chassis fit — the adapter is contoured to the Surface Pro 3 body so no other ports, volume rocker, or power button are obstructed.
- Driverless — plug and play under Windows 10 and Windows 11.
- Bus-powered — no wall wart, no extra cable, nothing to lose in your bag.
Compatibility
Designed exclusively for the Microsoft Surface Pro 3. For other Surface devices, see our Surface adapter collection, which includes dedicated hubs for the Surface Pro 4, 5, 6, 7, Surface Go, and Surface Laptop 3–5.
What's in the Box
- 1 × Surface Pro 3 4-in-1 Adapter
- 1 × Juiced Systems product guide
- 1-year limited warranty
Who It's For
- Photographers and videographers offloading SD/microSD footage between shoots.
- Field workers who need wired peripherals (USB mouse, keyboard, thumb drive) without carrying a full hub.
- Students turning a Surface Pro 3 into a compact desktop with external storage and input devices.
Frequently Asked Questions
Will this adapter work on a Surface Pro 4 or newer?
No — the connector shape is specific to the Surface Pro 3. For Surface Pro 4, 5, and 6 use our Surface Pro 4 Gigabit Ethernet Adapter.
Does it support USB 3.0 speeds on USB 3.0 devices?
Yes — both Type-A ports are rated at 5 Gbps SuperSpeed. Actual throughput depends on the connected device and host port.
Can I charge the Surface Pro 3 through this adapter?
No — this is a data-only adapter. Use the Surface Pro 3's dedicated magnetic charging port for power.
Do I need to install drivers?
No. Windows 10 and Windows 11 recognize the adapter automatically.
Looking for more ports? Check the Surface Pro 3 USB Hub or browse all Surface accessories.
All domestic orders ship FREE with standard shipping method.
