NCE 524-403 EPROM Firmware Upgrade for SB3, SB3a & SB5 Smart Booster (Upgrade Chip)

The NCE 524-403 EPROM Firmware Upgrade Chip is a genuine factory-programmed replacement chip for the NCE SB3, SB3a, and SB5 Smart Booster. This firmware update improves system stability, enhances communication with command stations and throttles, and ensures your booster operates at current NCE standards — bringing older Smart Boosters up to modern performance without replacement.

Arizona Hobbies is an authorized NCE dealer in Tucson, AZ. We carry the full NCE DCC product line and ship nationwide.

• Compatibility — NCE SB3, SB3a, and SB5 Smart Boosters
• Benefit — Improved stability and compatibility with newer NCE components
• Installation — Direct EPROM chip swap (anti-static precautions required)
• Source — Genuine NCE factory-programmed chip
• Note — Requires opening the booster unit to replace the existing chip