Gunvault SVB-500 Biometric Speedvault handgun safe slides quietly open to reveal your handgun. The SVB-500 uses reliable, state of the art biometric technology to remember up to 120 users. Biometric technology reliably identifies individuals by a fingerprint. The technology has reached the point where it is a no-brainier its fast, repeatable, and reliable. You can count on it to get you quick access to your weapon, but to completely lock out all other parties.