AMD-K6-2/400AFR AMD-K6-2/400AFR A AMD-K6-2/450ACK AMD-K6-2/450ADK AMD-K6-2/450AFX AMD-K6-2/475ACK AMD-K6-2/533AFX AMD-K6-2+/500ACZ AMD-K6-2+/533ACZ AMD-K6-2+/550ACZ