Qualcomm Atheros QCA61X4A Bluetooth/Wireless Network Adapter Drivers

The Qualcomm Atheros QCA61X4A Bluetooth/Wireless is a High performance 2x2 dual-band 802.11ac Wi-Fi with MU-MIMO and Bluetooth 4.2 radios in a single-chip solution. The drivers are below for this device. Including custom OEM packs for Dell and others.

Basic Specs:

Variants available for QCA6174A:

  • QCA6174A-1: supports low power PCIe 2.1 (w/L1 substate) interface for WLAN and UART/PCM interface for Bluetooth
  • QCA6174A-3: supports low-power SDIO 3.0 interface for WLAN and UART/PCM interface for Bluetooth
  • QCA6174A-5: supports low power PCIe 2.1 (w/L1 substate) for WLAN and USB 1.1 interface for Bluetooth.


  • 2x2 802.11ac + Bluetooth 4.2 in a single SoC
  • Supports Bluetooth 4.2, Bluetooth low energy and is backward compatible with Bluetooth 2.x
  • Integrated RF Front End and singleended design
  • Operates on a single 3.3 V power supply and an I/O supply of 1.8 V or 3.3 V
  • Advanced 11ac features: MU-MIMO, Transmit Beamformee
  • Both WLAN and Bluetooth power management with advanced power saving techniques
  • Maximal Likelihood (ML) decoding, lowdensity parity check (LDPC), maximum ratio combining (MRC) for robust link connection
  • 256-QAM in 2.4GHz
  • 1216KB RAM and 448KB ROM for Wi-Fi
  • 192KB RAM and 672KB ROM for Bluetooth


  • Wi-Fi Standards: 802.11ac Wave 2, 802.11a/b/g, 802.11n
  • Wi-Fi Spectral Bands: 2.4 GHz, 5 GHz
  • Peak Speed: 867 Mbps
  • Channel Utilization: 20/40 MHz, 20/40/80 MHz
  • MIMO Configuration: 2x2 (2-stream)
  • Wi-Fi Features: MU-MIMO
  • Bluetooth Version: Bluetooth 5.0
  • Bluetooth Technology: Bluetooth Low Energy
  • Class Support: Class 2, Class 1
  • Bluetooth RF Ports: 1
  • Memory OTP: 1.5 KB OTP
  • Interface Supported Interfaces: PCIe 2.1, PCM, UART
  • Package Size: 4.9 x 6 mm