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X299 Steel Legend
90-MXBBJ0-A0UAYZ
Model
ROG Crosshair VIII Extreme
Crosshair VIII Extreme
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7.1 Channels
Audio channels
7.1 Channels
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Realtek ALC1220
Audio chipset
ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4082
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1 x PS/2 Mouse/Keyboard Port
1 x Optical SPDIF Out Port
4 x USB 2.0 Ports (Supports ESD Protection)
1 x USB 3.2 Gen2x2 Type-C Port (20Gb/s) (ASMedia ASM3242) (Supports ESD Protection)
3 x USB 3.2 Gen1 Ports (Supports ESD Protection)
2 x RJ-45 LAN Ports with LED (ACT/LINK LED and SPEED LED)
1 x Clear CMOS Button
HD Audio Jacks: Rear Speaker / Central / Bass / Line in / Front Speaker / Microphone (Gold Audio Jacks)
Back io ports
2 x Thunderbolt 4 USB Type-C port(s)
2 x DisplayPort IN ports for Thunderbolt 4
8 x USB 3.2 Gen 2 port(s) (8 x Type-A)
1 x ASUS Wi-Fi Module
1 x Intel I225-V 2.5Gb Ethernet port
1 x Marvell AQtion AQC113CS 10Gb Ethernet port
5 x LED-illuminated audio jacks
1 x Optical S/PDIF out port
1 x BIOS FlashBack button
1 x Clear CMOS button
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Intel X299
Chipset
AMD X570
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Yes
Crossfire support
No
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No
Ecc ram support
No
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ATX
Form factor
EATX
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Intel I219-V
Lan chipset
Marvell AQtion AQC113CS
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2242 / 2260 / 2280 / 22110 - M Key
2260 / 2280 - M Key
2230 - E Key
M2 devices support
2242 / 2260 / 2280 - M Key
2242 / 2260 / 2280 - M Key
2242 / 2260 / 2280 - M Key
2242 / 2260 / 2280 / 22110 - M Key
2242 / 2260 / 2280 / 22110 - M Key
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3
M2 ports
5
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Dual 10/100/1000Mbps
Max lan speed
10Gbps + 10/100/1000/2500Mbps
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256 GB
Maximum supported ram
128GB
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2
Onboard usb 20
2
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1
Onboard usb 32 gen 1
2
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1
Onboard usb 32 gen 2
1
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4
Pci express x16 slots
2
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1
Pci express x1 slots
1
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Yes
Raid support
Yes
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8
Ram slots
4
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January 2020
Release date
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8
Sata 6 gbps ports
6
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Yes
Sli support
Yes
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LGA2066
Socket
AM4
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2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3200Mhz
3600Mhz
3733Mhz
3800Mhz
4000Mhz
Supported memory
2133Mhz
2400Mhz
2666Mhz
2800Mhz
2933Mhz
3000Mhz
3200Mhz
3400Mhz
3466Mhz
3600Mhz
3733Mhz
3800Mhz
3866Mhz
4000Mhz
4133Mhz
4266Mhz
4400Mhz
4600Mhz
4800Mhz
4866Mhz
5000Mhz
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No
Wireless lan
Yes
