Castles S1U2-M2B
An unattended Android module built to sit alongside a banknote validator — 2.8-inch screen, MDB, coin pulse, PCI PTS 7.x.
- Manufacturer
- Castles
- Form factor
- Unattended
- Operating system
- Secure Android 13
- Connectivity
- Ethernet, 4G LTE, 3G, GPRS, Wi-Fi 2.4 + 5GHz, Bluetooth 5.x, MDB, 2x RS232, USB-A, USB-C
- Receipt printer
- None
The S1U2-M2B is the variant for machines that still take cash. It is built to integrate with a banknote validator — Coinco and MEI units are listed as accessories — and carries a coin pulse input and a door switch alongside MDB for vending.
It takes all three card types on a 2.8-inch 600-nit display, with a quad-core A53 at 2.0GHz, 2GB of RAM and 16GB of flash on Android 13, certified to PCI PTS 7.x.
It is 106 x 85 x 70mm and 310g, EVA and NAMA mounting compliant, IP54 and IK08 — the lightest protection in the unattended family, which marks it as an indoor machine rather than a forecourt one. Input is 9 to 48V.
What it costs
The rate you pay is negotiated on your volume and card mix, not set by the terminal — two businesses on the same S1U2-M2B can be paying very different money. Find out what yours should be.
Other Castles terminals
Specifications from Castles. Checked 3 October 2026.
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