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Small M.2 circuit board with gold edge connector and black components

SMA

SMA Killer WiFi 6E AX1675x M.2 Wi-Fi Adapter Bluetooth 5.3

SKU CH-FD4G-4QKNX

Tri-band M.2 adapter adds Wi-Fi 6E and Bluetooth 5.3 with up to 2400 Mbps across 2.4, 5 and 6 GHz bands

  • Interface typePCI Express
  • Wi-Fi standardWi-Fi 6E
  • Supported standardsIEEE 802.11ax/ac, IEEE 802.11a/b/g/n
  • Wireless speed2,400 Mbit/s
  • Security featuresWPA3/ WPA-PSK/PWA 2-PSK/WPA 2/WEP
  • Radio bands2.4 GHz, 5 GHz, & 6 GHz
  • Tri-band 2.4, 5 and 6 GHz access gives interference-free ultra-low latency
  • Up to 2400 Mbps transmission rate supports high-speed gaming and streaming
  • Killer Prioritization Engine cuts gaming latency by up to 75 percent while multitasking
  • Bluetooth 5.3 adds modern peripheral support with improved efficiency
  • M.2 Key A or E slot fits compatible Intel Windows 10 or 11 64-bit laptops

Killer Wi-Fi 6E AX1675x M.2 Adapter

The SMA Killer WiFi 6E AX1675x is a tri-band M.2 wireless adapter supporting Wi-Fi 6E and Bluetooth 5.3. It targets Intel-based Windows 10 or 11 64-bit laptops needing lower latency for gaming and multitasking. The card delivers up to 2400Mbps across 2.4GHz, 5GHz, and 6GHz bands using IEEE 802.11ax/ac and legacy standards. It is not for buyers who need CNVio or CNVio2 compatibility, desktop motherboards without Key A or Key E slots, or operating systems other than Windows 10/11 64-bit.

Compatibility check before ordering

Verify the laptop uses an Intel platform running Windows 10 or 11 64-bit and does not already rely on a CNVio or CNVio2 wireless module. Confirm an empty M.2 slot with Key A or Key E pin-out is available for installation. The adapter requires external antennas, which are not included, so ensure the chassis has antenna cables and mounting points. Bluetooth 5.2 support is listed alongside the 5.3 specification, so check driver requirements for the desired Bluetooth version.

Build integration notes

The card occupies a single M.2 Key A or Key E slot and connects via PCI Express interface. It frees the system from older 2x2 80MHz wireless-AC limitations by enabling 160MHz channels, MU-MIMO, and OFDMA on the new 6GHz band. WPA3 security is supported alongside WPA2 and legacy protocols. For the advertised latency reduction and 2.4Gbps peak rate, a compatible Wi-Fi 6E router is required. The module adds Bluetooth 5.3 connectivity for peripherals without consuming a USB port.

How it compares

Measured against everything we stock in Wi-Fi Cards & USB Adapters, at today’s prices. Recalculated every night.

Price $59.99
Pricier than about 90% of the 1,565 comparable items (median $18.99).

Specifications

Product
Product typeM.2 Wi-FI Adapter
Connectivity
Wi-Fi standardWi-Fi 6E
Supported standardsIEEE 802.11ax/ac, IEEE 802.11a/b/g/n
Wireless speed2,400 Mbit/s
Radio bands2.4 GHz, 5 GHz, & 6 GHz
Antenna configurationTri Band 2.4 | 5 | & 6 GHz
Bluetooth support5.2
Ports & slots
Interface typePCI Express
More details
Security featuresWPA3/ WPA-PSK/PWA 2-PSK/WPA 2/WEP

Questions about this item

Does the SMA Killer WiFi 6E AX1675x M.2 card come with antennas or do I need to buy them separately?

Antennas are not included with the adapter. You will need to supply compatible antennas for the tri-band 2.4GHz, 5GHz and 6GHz operation.

The specs list Bluetooth 5.2 and 5.3 — which version does this adapter actually support?

The adapter supports Bluetooth 5.3 for Windows 10/11 64-bit systems.

What real-world throughput can I expect from the 2400Mbps rating once the card is installed in a laptop?

The 2400Mbps figure is the maximum theoretical PHY rate across the 2.4GHz, 5GHz and 6GHz bands using 160MHz channels; actual throughput depends on router capability, channel conditions and client configuration.

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