Cisco 1721, EIGRP, HSRP, OSPF, Ethernet, Fast Ethernet, 128 MB, 0 - 40 °C, 10 - 85%, AC 100/240 V ( 50/60 Hz )
Cisco 1721. Protokol penghalaan: EIGRP, HSRP, OSPF, Protokol pepaut data: Ethernet, Fast Ethernet. Memori dalaman: 128 MB. Keperluan kuasa: AC 100/240 V ( 50/60 Hz ), Platform pengurusan: Cisco IOS, Kadar pindahan data maksimum: 0,1 Gbit/s. Port I/O: 1 x network - Ethernet 10Base-T/100Base-TX - RJ-45 - 1 1 x network - auxiliary - RJ-45 - 1 1 x.... Jenis komunikasi: DSL modem/DSL, Protokol isyarat digital: ADSL