The Macintosh IIvi was a short-lived model of the Macintosh II series of Macintosh computers from Apple. The IIvi included either a 40, 160 or 400 MB hard drive, three NuBus slots and a PDS. The IIvi was essentially a Macintosh IIvx with a slower processor (16 MHz vs. 32 MHz) and no floating point unit. The Macintosh Performa 600 is essentially a IIvi with the IIvx's 32 MHz CPU. The IIvi was, on some benchmarks, faster than the crippled IIvx.
The Performa 600 was featured in the 1994 Disney movie Blank Check.