Enhanced bracket design to prevent bending. Connected to PCB with washered screws for a more secure connection. Uses SMT (Surface Mount Technology) type electrolytic capacitor. This low ESR (Equivalent Series Resistance) aluminum electrolytic capacitor offers much improved noise suppression & achieves higher levels of performance/reliability. Uses SMT (Surface Mount Technology) type crystal. Offers cleaner design than traditional DIP-type crystal. Provides greatly improved grounding, which reduces EMI emission & improves performance/reliability.