1/2 Sold more coming in from Russia this Summer! The Roland LAPC-I is a sound card for IBM PC compatible computers produced by Roland Corporation. It basically consists of a MT-32-compatible Roland CM-32L and a MPU-401 unit, integrated onto a single full-length 8-bit ISA card. In addition to normal Roland dealers aimed at musicians, it was distributed in the United States by Sierra On-Line in 1989 for use with the company's games. The MSRP of the card was around US$425 (equivalent to $1,040 in 2023).[1]: 25  The LAPC-I is one of few ISA cards that require a power supply with a -5V rail.