Keil have produced a range of 8051 development kit to suite many applications
The Keil MCB950 Evaluation Board is a versatile, flexible prototype board for the NXP (founded by Philips) P89LPC952 microcontroller family. . > Link to
The Keil MCBXC866 Evaluation Board introduces you to the Infineon XC800 microcontroller family and allows you to create and test working programs for this 8051-based architecture. > Link to
The Keil MCBXC88x Evaluation Board introduces you to the Infineon XC88x microcontroller family and allows you to create and test working programs for this 8051-based architecture. > Link to