Features of the RG7621 include a basswood body, Dimarzio pickups and a string-through fixed bridge. Although some Ibanez catalogs state that the RG7621 actually came with DiMarzio Blaze pickups, they are actually special DiMarzio 7 pickups, also known as Custom 7s, specially made for Ibanez's seven-string models. In 2000, the RG7621 was updated along with the introduction of the RG7421. New features were a three-piece neck, a new finish and powder cosmo hardware.