The QWA-AC2600 is an 2.4/5 GHz dual band dual concurrent (DBDC), 4 x 4 multi-user MIMO (MU-MIMO), low-profile PCI Express (PCIe) 2.0 x1 WLAN adapter with two Qualcomm QCA9984 NICs, which supports up to 2533 Mb/s (800 Mb/s for IEEE 802.11n (2.4 GHz) and 1733 Mb/s for IEEE 802.11ac (5 GHz)). The QWA-AC2600 can be used as an access point or base station with Ubuntu/Linux PCs or QNAP NAS. The combination of high compatibility of 802.11n and quick connection of 802.11ac equips the QWA-AC2600 for versatile applications like WLANs at the workplace and Internet of Things (IoT) deployment in practical use.