YESboard keyboards
Affirmative Technology Group offers a line of PC keyboards designed to maximize the productivity of AS/400 and Mainframe users when switching between host and local application programs. YESboard keyboards are high quality, industrial strength units comparable to IBM standards. You should expect years of trouble-free service and fewer input errors due to tactile and audible feedback inherent in the key-switch design.
Several different 122 layouts are available, with 5250 layouts for Midrange users and 3270 versions for Mainframe users. The 122-keyformat is perfect for a terminal (NPT) user who is migrating to a PC running terminal emulation, because all of the familiar terminal functions are located in exactly the same positions as with the NPT, and PC functions are highlighted in a bright blue color. So the newly introduced PC functions are immediately visible to the operator. The basic rule is: "what is new is in blue"