The SC-19 TTL Multi-Flash Cord is used to connect TTL flash units to each other or through the AS-10 TTL Multi-Flash Adapter or SC-17 TTL Remote Cord for multi-flash operation. Approximately 10 feet in length. Nikon Product Number 4559. Made in Japan. New, boxed with Instruction Book. $20+$5 shipping. Check or PayPal (kindly use Gift option).