Is Time Capsule better for backups?So why get a Time Capsule if you already have an AirPort Extreme?
Why not just buy the external drive of your choosing and plug it into your Wi-Fi router?According to Jai Chulani, senior product marketing manager for AirPort, the hard drives in the Time Capsule are “server-grade” models that have a higher mean time between failures (MTBF) rating than consumer-level drives. In other words, they should last longer than drives you buy off the shelf, although there’s some dispute about how reliable a number that MTBF figure is. “These are the cream-of-the-crop drives,” Chulani said in an interview. “They’re the same ones we use in our Xserve products.”A second reason to opt for Time Capsule is that backups will be somewhat faster, since the drive is integrated with the device, not attached via a USB connection. According to Chulani, a Time Capsule operating in the 5-GHz band will offer read/write speeds of 10MB to 15MB/sec., while a setup with an external drive plugged into an AirPort Extreme router will offer speeds of 5MB to 9MB/sec.Whether that differ
