Modern Quseir al-Khadim. A seaport on the Red Sea built during the Ptolemaic Period but that was more prominent during the Roman Period until the 3rd century AD. It was the major port for trade with Arabia and India and was connected to Coptos via the Wadi Hammamat. Hadrian later built a road to connect it with Antinoopolis. The historian Stabo visited the port with the prefect Aelius Gallus. The town was excavated by an American expedition in 1978, 1980, and 1982 and a British team from 1999–2003, when it was securely identified. The remains of an ancient Egyptian port on the Red Sea have been identified nearby at Mersa Gawasis.
Historical Dictionary Of Ancient Egypt by Morris L. Bierbrier
Ancient Egypt. A Reference Guide. EdwART. 2011.