53C895

53C895 is a PCI-based SCSI host controller chipset produced by NCR Corporation as part of the NCR 53Cxxx family. It was used on PCI SCSI controller cards in personal computers and servers during the 1990s to connect SCSI-1 and SCSI-2 devices such as hard disks, CD-ROM drives, and tape drives to a system. The device provides a PCI host interface to a SCSI controller core, integrating a DMA engine, a SCSI bus interface, and the necessary buffers. It supports connection to up to 15 SCSI devices on a single bus and implements the SCSI-2 protocol features common in that era. Depending on the revision, features such as synchronous transfers and tagged command queuing may be supported; exact capabilities vary by model and firmware.

Software support was provided through driver packages for Linux and Windows, commonly under the NCR53C8xx family. The 53C895 line was marketed and later continued under LSI Logic after NCR's SCSI assets were acquired, with the product sometimes listed as LSI53C895 in archival materials. As PCI-based SCSI controllers were superseded by faster interfaces and newer storage standards, the 53C895 era ended in the early 2000s, though surviving cards remain of interest for vintage computing and for maintenance of legacy systems.

See also: NCR 53C810, NCR 53C875, LSI Logic 53C895.