Their cross-platform ASPI was an early API for accessing and integrating non-disk devices like tape drives, scanners and optical disks.

Adaptec made a number of acquisitions in the 1990s to expand their reach in the SCSI peripheral market.

[8] Following the sale, Adaptec would retain its Aristos ASIC technology business, certain real estate assets, more than 200 patents, and approximately $400 million in cash and marketable securities.

Adaptec produced interface products involving SCSI, USB, IEEE 1394 (Firewire), iSCSI, Fibre Channel, and video.

[16] Adaptec once produced CD- and DVD-burning software under the brand names of Easy CD Creator and Toast, as well as network-attached storage devices such as the Snap Server product line.