The 133 MHz version is very rare, however, and producers of upgrade kits were given preferential access to it, notably Gainbery.

Until now, when companies wanted to upgrade, Microsoft offered discounted upgrade kits.

However, the LP12's sound quality has been improved through retrofittable upgrade kits.

The upgrade kits are easy to install.

A number of third parties have already announced they will be providing one-board upgrade kits to support Microsoft's specification.

According to Apple, the cost of the upgrade kits will start at less than $1,000 and go up.

Many 386 upgrade kits were advertised as being simple drop-in replacements, but often required complicated software to control the cache and/or clock doubling.

Upgraded system was designated as SAM-1C in 1995, initial production on upgrade kits for the system starting in 1996.

Some systems are also available as additional upgrade kits for later installation.

Fix delayed input issue on some upgrade kits.