Compare Detail
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X299M EXTREME4Modelb550m-a pro
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7.1 ChannelsAudio channels7.1 Channels
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Realtek ALC1220Audio chipsetRealtek ALC892/ALC897 Codec
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Intel X299ChipsetAMD B550
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YesCrossfire supportNo
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NoEcc ram supportNo
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Micro ATXForm factorMicro ATX
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Intel I219-VLan chipsetRealtek RTL8111H
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2230 / 2242 / 2260 / 2280 / 22110 - M Key
2260 / 2280 - M KeyM2 devices support2242 / 2260 / 2280 - M Key -
2M2 ports1
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Dual 10/100/1000MbpsMax lan speed10/100/1000Mbps
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64 GBMaximum supported ram64 GB
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2Onboard usb 202
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1Onboard usb 32 gen 11
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3Pci express x16 slots1
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0Pci express x1 slots1
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NoRaid supportYes
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4Ram slots2
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8Sata 6 gbps ports4
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YesSli supportNo
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LGA2066SocketAM4
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2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3200Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266MhzSupported memory1866Mhz
2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3000Mhz
3200Mhz
3466Mhz
3600Mhz
3733Mhz
3866Mhz
4000Mhz
4133Mhz
4266Mhz
4400Mhz
4600Mhz -
NoWireless lanNo
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