The Apple Time Capsule 3rd Generation is a wireless network-attached storage device that was designed, manufactured, and sold by Apple from 2009 to 2011 as part of the AirPort Time Capsule series. The Time Capsule has been introduced on October 20, 2009, and its price started at $299.
The new AirPort Time Capsule features a Gigabit Ethernet (10/100/1000BASE-T), 1 TB or 2 TB of hard drive, Data rate up to 540 Mbps, compatibility with 802.11a/b/g/n protocols, guest networking, three LAN ports, the possibility to connect up to 50 devices.
It is marketed as a backup device designed to work in tandem with the Time Machine backup utility, introduced in Mac OS X 10.5 Leopard. The device includes a full AirPort Extreme (with 802.11n wireless, an Ethernet WAN port, and three Ethernet LAN ports) and Dual-band operation on 2.4 GHz and 5 GHz simultaneously.

Updated Time Capsule with antenna improvements resulting in wireless performance gains of both speed and range. Also stated is a resulting performance improvement/time reduction on Time Capsule backups of up to 60 percent.
This Time Capsule has been discontinued on June 21, 2011.
Today Time Capsule 3rd Generation is 14 years old!

Time Capsule 3rd Generation Release Date and Original Price
Introduced | October 20, 2009 |
Discontinued | June 21, 2011 |
Model Number | A1355 |
Order Number | MC343LL/A (1 TB) MC344LL/A (2 TB) |
Original Price | $299 (1 TB) $499 (2 TB) |
Weight | 3.5 Ibs. 1.587 KG |
Dimensions | 1.4″ D x 7.7″ H x 7.7″ W 3.55 cm D x 19.55 cm H x 19.55 cm W |

Wireless
Wireless Data Range | 200 – 540 Mbps |
Compatibility | Wi-Fi (802.11a/b/g/n) |
Frequency | 2.4 GHz or 5 GHz simultaneously |
Radio Output Power | 20 dBm (nominal) |
Security | WPA WPA2 WEP (40-bit or 128-bit encryption) |
Capacity | 50 users |
MIMO Config | 3×3:3 |
Supported Protocols | NAT DHCP PPPoE VPN Passthrough (IPSec, PPTP, and L2TP) DNS Proxy SNMP |
Connections
Ports | 4 – Ethernet (10/100/1000BASE-T) 1 – USB |
Storage | 1 TB 2 TB |
AirPlay | No |
Power over Ethernet | No |
References:
Apple Support – AirPort Time Capsule 802.11n (3rd Generation): Technical Specifications