Switching circuit, switching equipment and switching system

The invention relates to the technical field of hard disk testing, and discloses a switching circuit, switching equipment and a system.The switching circuit is applied to the switching equipment, the switching equipment is used for being connected with a solid state disk and computer equipment, and the switching circuit comprises a first slot used for being connected with the computer equipment; the plurality of second slots are used for being connected with the solid state disks in a one-to-one correspondence manner, the first slot comprises a preset number of channel groups, each channel group is in one-to-one correspondence with the second slots, and the total number of channels in the channel group of the first slot is equal to the total number of channels of the second slots; and the channel group of the first slot is used for transmitting data to the second slot corresponding to each channel group. According to the switching circuit, one computer device can be connected with a plurality of solid state d