The Toshiba SB 220 is a Sound Blaster-compatible audio card characterized by its compatibility with various PC systems, including older models. It's often utilized for gaming and multimedia applications, providing adequate audio performance for its time. The card supports basic audio capabilities and can be configured for various games, though users may need to adjust IRQ settings for optimal functionality. The structure of the card accommodates additional MIDI interface connections, enabling enhanced sound options for compatible games. The card is generally recognized for its simplicity in installation and setup, making it a viable choice for users looking to enhance their audio experience in older computers.