You kind of answered yourself. 5 gbps is the absolute max
eSATA-300 (eSATA version 2)
Speed of sata 1 is 1.5 Gbps Speed of sata 2 is 3 Gbps
1 Gbps
The maximum is 1 Gbps (CAT-5e, CAT-6), the maximum distance without attenuation is 100 m.
LANs typically range in speed from 10 Mbps to 1 Gbps, although some newer LAN technologies are boosting the speed to 10 Gbps at least.
The power of the engine of the 1975 Audi 50 is 50 hp. The maximum speed is 88 mph.
50
The maximum capacity of a hard drive dock depends on what dock is used. The capacity can range anywhere from 2.5 Gbps. to 6.0 Gbps on a higher quality docking station.
50
The maximum speed of a the 1969 Chevrolet c-50 diesel is 112 mph.
I assume you mean flash drive/USB memory stick. The latest speed is either 3.2 Gbps (400 MBps USB 3.0), or if you're lucky there are now Thunderbolt I/O drives that can reach speeds of 10 Gbps (1.25 GBps).
16 Gbps
A LAN may typically run anywhere from 10 Mbps to 1 Gbps (or even the newer 10 Gbps)