These models share the same case that started with the Centris 610 and most parts are interchangeable:

• Centris / Quadra 610 , 660 AV or (PC)
• Performa 6110CD, 6112CD, 6115CD, 6116CD, 6117CD, 6118CD
• Power Mac 6100/60, 6100/66 AV or (PC)
• Workgroup Server 60, 6150/60, 6150/66

Product Title will indicate model application:

• Centris 610 ~ Power Mac 6100 (indicates all models with this case)
• Centris / Quadra 610 / 660 (only models listed)
• Power Mac / Performa 6100 (indicates all except Centris and Quadra)
• Product name only (usable by additional Macintosh models)

CD-ROM drives are found here. The earliest models came with an AppleCD 300 or 300 Plus. Later models may have had a 300i.

Hard drives are found here.