XLR8's MACh Speed Control 2.5.0 has been released.

The software utility configures XLR8's CPU upgrade cards for optimum performance under Mac OS 7.5.2 through to Mac OS X.

The control panel features automatic cache-profiling and initialization at start-up, and system tuning to overcome problems in older environments. This utility also improves overall stability.

Thermal monitoring is available under Mac OS 8.6 to 9.x, alerting users to overheating of the CPU.

The software requires an XLR8 serial number to work. All XLR8 cards sold after January 2000 have a serial number attached. Users of cards purchased prior to this must obtain a serial number to use the software.

Serial numbers for XLR8 and non-XLR8 upgrade cards can be bought for $14.95, by registering and downloading the software. Users are emailed the serial number.