Check the listing for details. Mockingboard 4c (Mockingboard for APPLE c 4000&4100). Listed at 146.95 USD. *******************************************************************Mockingboard for APPLE //c(Model# 4000&4100)*******************************************************************Mockingboard 4cIt is the only the Mockingboard for APPLE //c.It works as you have installed the Mockingboard in Slot#4.It works most of Mockingboard programs as Mockingboard A/C,I,II.Make your APPLE //c with sound card supported. It Included two speakers and one wire for Dial volume control on APPLE //c.Volume control Knob works on APPLE //c speaker and Mockingboard speakers. Please watch this review by Mr. Rob Ivy.(Vedeo is little old revision and now the board was revised for better quality)https://www.youtube.com/watch?v=7FdN1BLuvzU&feature=youtu.behttps://youtu.be/qU-KULlGtFo Manual also here.https://youtu.be/3B-76tyv-v0 Works on APPLE //c (Not //c+) I will shipOne MB4C sound board (CPU not included)Two speakersOne wire for Volume control ShippingShips within 7business days after receiving payment. **SHIPPING NOTICE**Some of the country not available cheaper standard shipping way. In this case, I may ask you for extra shipping costs for faster shipping way. If you want sure, please send a message.Please visit my website for coupon or other information.APPLE2.NET Thank you;Ian Kim