Circuit boards are double-insulated to protect against power surges, and there are backup power supplies that can be switched out on the fly.

FORBES: Technology

There are various ways to protect yourself from double taxation, particularly by using IRAs and 401(k)s.

FORBES: The Perverse Impact Of Double Taxation: A Helpful Flow Chart

The M5M also features Plextor's True Protect unique enterprise-grade double-data protection technology.

ENGADGET: Plextor trots out M5M series mSATA drives at CES