The 7705 SAR-X has a fixed physical configuration that has 14 Ethernet ports:
four XOR (combination) RJ-45/SFP Gigabit Ethernet ports (10/100/1000 Mb/s) (ports 2/1A, 2/2A, 3/1A, 3/2A for RJ-45 and 2/1B, 2/2B, 3/1B, 3/2B for SFP)
eight SFP Gigabit Ethernet ports (10/100/1000 Mb/s) (ports 2/3 to 2/6 and 3/3 to 3/6)
two SFP+ 10-Gigabit Ethernet ports (ports 2/7 and 3/7)