Compare Detail
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B550 AORUS PRO ACModelB550M PRO4
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2/4/5.1/7.1-channel
Support for S/PDIF OutAudio channels7.1 Channels -
Realtek ALC1220-VB codec
* The back panel line out jack supports DSD audio.Audio chipsetRealtek ALC1200 -
1 x HDMI port
2 x SMA antenna connectors (1T1R)
3 x USB 3.2 Gen 1 ports
1 x USB Type-C port with USB 3.2 Gen 2 support
2 x USB 3.2 Gen 2 Type-A ports (red)
6 x USB 2.0/1.1 ports
1 x Q-Flash Plus button
1 x RJ-45 port
1 x optical S/PDIF Out connector
5 x audio jacksBack io portsAntenna Bracket
1 x PS/2 Mouse/Keyboard Port
1 x D-Sub Port
1 x HDMI Port
1 x DisplayPort 1.4
1 x USB 3.2 Gen2 Type-A Port (10Gb/s) (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-C Port (10Gb/s) (Supports ESD Protection)
4 x USB 3.2 Gen1 Ports (ASMedia ASM1074 hub) (Supports ESD Protection)
2 x USB 2.0 Ports (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone -
AMD B550ChipsetAMD B550
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NoCrossfire supportYes
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YesEcc ram supportYes
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ATXForm factorMicro ATX
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Realtek 2.5GbE LAN chipLan chipsetRealtek RTL8111H
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2242 / 2260 / 2280 / 22110 - M Key
2242 / 2260 / 2280 / 22110 - M KeyM2 devices support2280 - M Key
2280 - M Key
2230 - E Key -
2M2 ports3
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10/100/1000/2500MbpsMax lan speed10/100/1000Mbps
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128 GBMaximum supported ram128GB
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2Onboard usb 202
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1Onboard usb 32 gen 12
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3Pci express x16 slots2
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2Pci express x1 slots1
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YesRaid supportYes
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4Ram slots4
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June 2020Release dateJune 2020
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6Sata 6 gbps ports6
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NoSli supportNo
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AM4SocketAM4
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2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3333Mhz
3600Mhz
4000Mhz
4400Mhz
4600Mhz
4866Mhz
5000MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3466Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266Mhz
4333Mhz
4400Mhz
4533Mhz -
5Wi fi generation
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YesWireless lanNo
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