
The run-of-the-mill external hard drive isn’t particularly road-trip-friendly—it doesn’t work without a computer and can’t pipe movies to more than one person at a time. The 500-gigabyte GoFlex Satellite, on the other hand, facilitates mobile movie watching. An internal Wi-Fi radio broadcasts a hotspot that can serve up to three devices (iPads, smartphones, laptops) through a dedicated app or a Web browser. The drive accesses data quickly enough for each user to stream his own high-def movie, and an internal battery provides five hours of untethered viewing time. $200