A plug-in module frame has sockets with at least one signal contact each for passing an information signal between the plug-in module frame and a plug-in module mounted at one of the sockets. Wheel spin is caused by low surface friction, excessive input torque, lack of inter-axle differential and differential locks, excessive operating temperatures, or poor driving techniques. This post has an edge proximate and substantially parallel to the ABS. The lock includes a locking member which prevents removal of the notebook computer or other personal electronic device from the work surface. The RGD-enriched solubilized extracellular matrix composition is applied to the lumen of the vasculature of the organ, thereby placing a barrier between the antigens on the lumenal surfaces of the transplanted organ and the blood of the recipient. In assembly, the extended wall sections of the outer shell are mounted in contiguous relation with the return inlet of the fan coil and are fastened thereto to create a rigid structure.