The Apple AirPort Time Capsule is a network storage device. It was used for Time Machine backups, allowing for both wired and wireless backups to the device's hard drive. 

Size: 7.7 in x 7.7 in x 1.4 in 

Weight: 3.5 lb 

Hard drive: 2 TB hard disk drive 

Ports: One Gigabit Ethernet WAN port, three Gigabit Ethernet LAN ports, and one USB port 

Wireless: 802.11n wireless, IEEE 802.11a/b/g/n/ac, simultaneous dual-band 2.4GHz and 5GHz 

Security: Wi-Fi Protected Access (WPA/WPA2), wireless security (WEP), MAC address filtering, NAT firewall, RADIUS authentication