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PRIME B550M-A AC specifications summary
Ethernet
Wireless &
Bluetooth
USB
Audio
Back Panel I/O Ports
Internal I/O
Connectors
1 x Realtek RTL8111H 1Gb Ethernet
Realtek Wi-Fi 5 8821CE
1x1 Wi-Fi 5 (802.11 a/b/g/n/ac) with MU-MIMO
RTL8821CE module
Supports dual frequency band 2.4/5GHz
Supports channel bandwidth: HT20/HT40/HT80
Supports PCIe interface
Bluetooth v5.0
Rear USB (Total 6 ports)
2 x USB 3.2 Gen 2 ports (2 x Type-A)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
Front USB (Total 6 ports)
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 ports
Realtek ALC887 7.1 Surround Sound High Definition Audio CODEC*
- Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192kHz playback
Audio Features
- Audio Shielding
- LED-illuminated audio trace path design
- Premium Japanese audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1
Surround Sound audio output.
2 x USB 3.2 Gen 2 ports (2 x Type-A)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
1 x D-Sub port
1 x DVI-D port
1 x HDMI
port
TM
1 x ASUS Wi-Fi Module
1 x Realtek RTL8111H 1Gb Ethernet port
3 x Audio jacks
1 x PS/2 Keyboard/Mouse combo port
Fan and cooling related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
2 x 4-pin Chassis Fan headers
Power related
1 x 24-pin Main Power connector
1 x 8-pin +12V Power connector
Storage related
2 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
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