Final answer:
Thunderbolt 1 has a data transfer rate of up to 10 Gbps and supports multiple devices on a single port.
Step-by-step explanation:
Thunderbolt 1, a technology developed by Intel, has several characteristic features. It has a data transfer rate of up to 10 Gbps, which allows for fast transfer of large files. It uses a Mini DisplayPort (MDP) connector for video output and supports the sending PCIe/DisplayPort data and power over a single cable feature, which allows for the connection of multiple devices using one Thunderbolt port.
Thunderbolt 1 also supports up to 6 devices on a single port. However, it does not have a USB-C connector and its data transfer rate is lower compared to Thunderbolt 2 and Thunderbolt 3.