The 2TB drive and the Apple Time Capsule 3TB version contain a server grade hard drive. What is the significance of this? Server grade means your Time Capsule's internal 2TB or 3TB drive is robust. And seems to have proven itself as such in the field.

If you attach an external hard drive to the USB port on the Time Capsule it will show up as a shared drive that you can just treat as network attached storage. But the internal drive can only be used for Time Machine backups. – Ian C. ♦ Nov 18 '13 at 16:18 Built for Time Machine. Time Capsule includes a wireless 500GB or 1TB hard drive designed to work with Time Machine in Mac OS X Leopard. Just set Time Capsule as the designated backup drive for Time Machine, and that’s it. Depending on how much data you have, your initial backup with Time Capsule could take overnight or longer. This Problem occur often with Time Capsule hard drive since upgrade to Sierra. Best solver to upgrade Time Capsule hard drive to SSD. Problem solve. Also to solve, can connect external hard disk drive to USB on Time Capsule. Must remember Time Capsule hard drive is 4 Time Machine. Not to act as NAS. Will be installing today but my thought was just to use Ethernet cable to link my Time Capsule to one of my M9s and just turn off the wireless on the Time Capsule. Should still be seen as a network based drive and Macs will see the Time Capsule as they are all on the same network anyway.

Guide to Synology NAS with Time Machine – NAS Compares

Apple AirPort Time Capsule review: Fast Wi-Fi and easy As a NAS server, when connected to a computer via wired Gigabit connection, the Time Capsule offered 26MBps and 29MBps, respectively, for writing and reading. These are fast speeds, about the same

Oct 28, 2016

153 product ratings - Apple AirPort Time Capsule 3TB Wireless Hard Drive 802.11ac Wi-Fi $175.00 Trending at $199.99 Trending price is based on prices over last 90 days.