Compare Detail
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A520M Pro4
90-MXBDU0-A0UAYZModelB550M S2H -
7.1 ChannelsAudio channels7.1 Channels
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Realtek ALC1200Audio chipsetRealtek ALC887
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Antenna 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 Gen1 Type-A Port (Supports ESD Protection)
4 x USB 3.2 Gen1 Type-A Ports (ASMedia ASM1074 hub) (Supports ESD Protection)
1 x USB 3.2 Gen1 Type-C Port (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 / MicrophoneBack io ports1 x PS/2 keyboard/mouse port
1 x D-Sub port
1 x DVI-D port
1 x HDMI port
4 x USB 3.2 Gen 1 ports
2 x USB 2.0/1.1 ports
1 x RJ-45 port
3 x audio jacks -
AMD A520ChipsetAMD B550
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NoCrossfire supportNo
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NoEcc ram supportYes
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Micro ATXForm factorMicro ATX
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Realtek RTL8111HLan chipset
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2280 - M Key
2280 - M Key
2230 - E KeyM2 devices support2242 / 2260 / 2280 - M Key -
3M2 ports1
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10/100/1000MbpsMax lan speed10/100/1000Mbps
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128GBMaximum supported ram64GB
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2Onboard usb 201
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2Onboard usb 32 gen 11
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2Pci express x16 slots1
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0Pci express x1 slots2
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YesRaid supportYes
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4Ram slots2
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January 2021Release dateJune 2020
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4Sata 6 gbps ports4
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NoSli supportNo
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AM4SocketAM4
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2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3466Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266Mhz
4333Mhz
4400Mhz
4533Mhz
4600Mhz
4666Mhz
4733MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3333Mhz
3600Mhz
4000Mhz
4400Mhz
4600Mhz
4866Mhz
5000Mhz -
NoWireless lanNo
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