Topaz SignatureGem LCD 4x5 Signature Pad QVGA TFT LCD, 4.6 x 3.4 in, E/M digitizer, Battery-less E/M pen, Serial/USB (HID)

The Topaz SignatureGem LCD 4x5 Electronic Signature Pad is a family of professional, business-grade signature capture devices designed for point-of-sale, office, healthcare and remote signing workflows. Combining an interactive LCD that displays electronic ink under the pen tip with high-precision electromagnetic digitizers and tempered glass signing surfaces, the lineup delivers clear visual feedback, reliable biometric capture and durable daily use. Variants support multiple connectivity options (USB-A, USB, serial, virtual serial, Bluetooth) and virtual environment compatibility (Citrix, Remote Desktop, VDI), making integration straightforward across desktop, kiosk and virtual deployments while reducing paper use and improving transaction speed and auditability.

Key Features

• Interactive LCD feedback: On-screen electronic ink displays signature strokes under the pen tip to improve signer confidence and reduce errors during capture.
• Durable tempered glass surface: Rugged signing surfaces across variants provide a natural pen-on-paper feel and withstand high-traffic environments.
• High-precision capture: Electromagnetic/E-M digitizers with up to 410 ppi movement resolution and sampling-rate support ensure detailed, forensic-quality signature data.
• Flexible connectivity: Multiple interfaces are available—including USB-A/USB (High Speed), Dual Serial, Virtual Serial and Bluetooth—enabling easy integration with POS, desktop and VDI systems.
• Enterprise-ready compatibility: Models support biometric capture and remote/virtual environments (Citrix, Remote Desktop, VDI) and include replaceable cables and bundled Topaz software for deployment and maintenance.

Specifications

• Brand: Topaz
• Product Family: Topaz SignatureGem LCD 4x5
• Display Size (variant-dependent): 4 x 5 in
• Signing Area (variant-dependent): 4.6 x 3.4 in (some models) / 4 x 5 in active area
• Display Type: LCD (including QVGA TFT and STN transflective backlit options)
• Display Resolution: 320 x 240
• Signing Surface Material: Tempered glass
• Sensor / Digitizer Type: Electromagnetic (E/M) / Active Electromagnetic
• Movement Resolution: 410 ppi
• Sampling Rate: 377 pps
• Pen Type: GemGuard active pen / active low-power battery-less E/M pen (pen included on applicable models)
• Pen Tethered / Holders: Pen tethered on select models; horizontal and vertical pen holder orientation supported on some variants
• Connectivity / Interfaces: USB-A, USB (High Speed), Dual Serial, Serial, Virtual Serial, Bluetooth (varies by model)
• Replaceable USB Cable: Yes (on applicable models)
• Biometric Capture Capabilities: Yes
• Remote / Virtual Environment Compatibility: Citrix, Remote Desktop, VDI (on supported models)
• Bundled Software: Topaz SigPlus tools, SigAnalyze, SigCompare, SigTool Imager, SigValid, Adobe Acrobat and other utilities (varies by model)
• Display Backlighting: Backlit options available
• Weight: Approximately 1–2 lb (model-dependent)
• Replaceable / Maintenance Features: Replaceable cables and durable pen tip activation life on selected variants