Compare Detail
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B550 AORUS MASTERModelX299X AORUS MASTER
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2/4/5.1/7.1-channel
Support for S/PDIF OutAudio channels4.2/4/5.1/7.1-channel
Support for S/PDIF Out -
Realtek ALC1220-VB codec
* The back panel line out jack supports DSD audio.Audio chipsetRealtek ALC1220-VB codec
* The front panel line out jack supports DSD audio. -
2 x SMA antenna connectors (2T2R)
1 x HDMI port
6 x USB 2.0/1.1 ports
5 x USB 3.2 Gen 2 Type-A ports (red)
1 x USB Type-C port with USB 3.2 Gen 2 support
1 x Q-Flash Plus button
1 x RJ-45 port
1 x optical S/PDIF Out connector
5 x audio jacksBack io ports1 x Q-Flash Plus button
1 x Clear CMOS button
1 x USB Type-C port with USB 3.2 Gen 2 support
1 x USB 3.2 Gen 2 Type-A port (red)
6 x USB 3.2 Gen 1 ports
2 x USB 2.0/1.1 ports
2 x RJ-45 ports
2 x SMA antenna connectors (2T2R)
1 x optical S/PDIF Out connector
5 x audio jacks -
AMD B550ChipsetIntel X299
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NoCrossfire supportYes
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YesEcc ram supportNo
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ATXForm factorEATX
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Realtek 2.5GbE LAN chipLan chipsetAquantia 5GbE LAN chip
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2242 / 2280 / 22110 - M Key
2242 / 2280 / 22110 - M Key
2242 / 2280 / 22110 - M KeyM2 devices support2260 / 2280 / 22110 - M Key
2242 / 2260 / 2280 / 22110 - M Key
2242 / 2260 / 2280 / 22110 - M Key -
3M2 ports3
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10/100/1000/2500MbpsMax lan speed100/1000/2500/5000Mbps + 10/100/1000Mbps
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128GBMaximum supported ram256GB
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2Onboard usb 203
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1Onboard usb 32 gen 12
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0Onboard usb 32 gen 21
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3Pci express x16 slots4
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YesRaid supportYes
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4Ram slots8
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June 2020Release dateOctober 2019
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6Sata 6 gbps ports8
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NoSli supportYes
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AM4SocketLGA2066
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2133Mhz
2400Mhz
2666Mhz
2933Mhz
3200Mhz
3333Mhz
3600Mhz
4000Mhz
4400Mhz
4600Mhz
4866Mhz
5000MhzSupported memory2133Mhz
2400Mhz
2666Mhz
2933Mhz
3000Mhz
3200Mhz
3300Mhz
3333Mhz
3400Mhz
3466Mhz
3600Mhz
3666Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4200Mhz
4266Mhz
4333Mhz -
6Wi fi generation6
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YesWireless lanYes
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