This product is either discontinued or we cannot get that from suppliers.
Qnap QNSP-1BAY-ADAPT Power Adapter, For 1 Bay Nas NAS Accessories, Device Supported Storage Server.
NEW AC Adapter for QNAP SP-1BAY-ADAPTOR Fits 1-Bay NAS Power Supply. AC adapters manufactured with the highest quality materials and include safeguard features against incorrect voltage, short circuit, internal overheating.