- Dimensions163 x 157 x 10 mm (6.41 x 6.18 x 0.39 inch)
- Communication interfaceSTU-540: USB 2.0/RS-232
- Power SupplyUSB bus powered
- Display typeAmorphous TFT LCD
- Screen Size5″ (108 x 65 mm)
- Native Resolution800 x 480 pixels
- Reading technologyElectromagnetic Resonance (EMR)
- Pen pressure levels1024 (non-interpolated)
- Pen report rate200 points per second (non-interpolated)
- Coordinate resolution2,540 lpi / 0.01 mm/pt(non-interpolated)
- Coordinate accuracy± 0.5mm (center)
- Security Lock Slot Yes
- Battery-free pen Yes
- Cordless pen Yes
Wacom STU-540 Signature PadOctober 14, 2025
Wacom STU-540 Signature Pad
- Patented cordless, battery-free pen with 1024 levels of pressure sensitivity to accurately capture the unique signature profile, including biometric data.
- Hardened cover glass with anti-glare treatment provides enhanced viewing and a signing surface with a natural pen-on-paper feel.
- State-of-the-art AES 256/ RSA2048 encryption to perform secure transactions.
Native support for Citrix v7.6.3 and newer in standard USB mode. - Virtual COM Port (VCP) mode available for compatibility with Citrix v6.5 and other virtualized desktop environments.
“Slideshow” mode can run advertising and promotional messages directly from the pad itself. - Customizable key pad enables input utilizing user-defined UI.
WILL (Wacom Ink Layer Language) rendering to show the best and most authentic representation of your handwritten electronic signature. - UID (Unique hardware ID) can be used to confirm the exact unit used to capture a particular signature.
Serial connectivity available as an option with separate accessory kit. - STU SDK (Software Development Kit) and Signature SDK are available for developers who wish to integrate support for Wacom signature pads into their applications.
Description
The STU-540 is Wacom’s most advanced and robust signature pad, featuring a 5″ high-resolution color screen with a hardened durable cover glass. Its broad range of connectivity options – including multiple choices for virtualized desktop environments, top-level encryption and user convenience give it the flexibility to meet the growing demands of organizations implementing handwritten electronic signature.
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