Asus Prime X299 Deluxe II Ports
USB 2.0 Port(s): Universal Serial Bus (USB) port for connecting USB 2.0 and older devices (480 Mb/s).
Gigabit LAN Port (RJ-45): RJ-45 plug for connecting to a wired Local Area Network (LAN) via Ethernet at up to 1000 Mbps.
USB 3.2 Gen 1 (USB 3.0) Port(s): Universal Serial Bus (USB) port for connecting USB 3.2 Gen 1 and older devices (5 Gb/s).
5G LAN (RJ45): RJ-45 plug for connecting to a wired Local Area Network (LAN) via Ethernet at up to 2.5 Gb
Displayport Input for USB C: Connect a DisplayPort cable from your video card to passthrough to the USB-C / TB port.
Displayport Input for USB C: Connect a DisplayPort cable from your video card to passthrough to the USB-C / TB port.
Thunderbolt 3 Port: Thunderbolt 3 high speed data port. Also supports USB 3.1 or DisplayPort video output with adapter.
USB 3.2 Gen 1 (USB 3.0) Port(s): Universal Serial Bus (USB) port for connecting USB 3.2 Gen 1 and older devices (5 Gb/s).
Thunderbolt 3 Port: Thunderbolt 3 high speed data port. Also supports USB 3.1 or DisplayPort video output with adapter.
USB 3.2 Gen 1 (USB 3.0) Port(s): Universal Serial Bus (USB) port for connecting USB 3.2 Gen 1 and older devices (5 Gb/s).
WiFi Antenna Connector: Connection for WiFi antenna (included). Antenna must be connected to get proper reception.
Optical S/PDIF Out: Digital audio output port compatible with optical S/PDIF cables / devices (also called TOSLINK).
Audio Jacks: 3.5mm analog audio jacks for various input and output functions (see manual for more information).
Asus Prime X299 Deluxe II Schematic
A wide range of connectivity is available on this board: six standard USB ports, a pair of Thunderbolt 3 (Type C) ports, 1Gb & 5Gb Ethernet, WiFi6, BT 4.2, and both analog & digital audio outputs. A pair of DisplayPort connectors are present as well, but they are inputs to feed the Thunderbolt ports. Internally there are eight SATA ports, three M.2 connectors, and a mix of PCI-Express 3.0 slots. Some of those PCI-E slots share bandwidth with other connections, as detailed below.
Note the following:
PCIEX1_1 shares bandwidth with USB 3.1 Gen 2 front panel connector(U31G2_E1). It is disabled by default.
PCIEX1_2 shares bandwidth with SATA6G_7.
Model: Asus Prime X299-Deluxe II
Specifications
| Socket | 2066 |
| CPU Compatibility | SkyLake-X |
| Form Factor | ATX |
| Chipset Manufacturer | Intel |
| Chipset | X299 |
| Network Connectivity | Gigabit + 5Gb Networking + 802.11 A/B/G/N/AC |
| Network Controller | Intel I219V + Aquantia AQC111C + Intel 9260 |
| Audio Controller | Onboard Realtek S1220A HD Audio |
| Cooling System | Heatsink |
| Number of Fans | 1 |
| Color | Black & White |
Memory Support | |
| Type | DDR4 |
| Maximum Speed | 2666 MHz |
| Number of Slots | 8 |
| Maximum Size per Slot | 32 GB |
| Maximum Amount Supported | 256 GB |
Onboard Video | |
| Notes: | Displayport IN for Thunderbolt video output (providing up to DP 1.4) |
External Connections | |
| USB 2.0 | 2 |
| USB 3.2 Gen 1 (USB 3.0) | 4 |
| Audio Out | Surround Sound (7.1) |
| Audio In | Line-In/Microphone |
| S/PDIF | Optical |
| LAN (RJ45) | 2 |
| Wireless Antenna Port | Yes |
| Thunderbolt Ports | 2 |
| Thunderbolt Version | 3 |
Internal Connections | |
| USB 2.0 | 1 (providing 2 ports) |
| USB 3.2 Gen 1 (USB 3.0) | 2 |
| USB 3.2 Gen 2 Type C | 1 |
| SATA III 6.0Gbps | 8 |
| M.2 Connector | 3 |
| M.2 Support | 1x 42-110mm NVMe & SATA, 2x 42-110mm NVMe |
SATA Controllers | |
| SATA III 6.0Gbps Controller 1 | Intel |
Expansion Slots | |
| Slot 1 | PCI Express 3.0 x16 |
| Slot 2 | PCI Express 3.0 x1 |
| Slot 3 | Slot not available on this board |
| Slot 4 | PCI Express 3.0 x16 |
| Slot 5 | PCI Express 3.0 x1 |
| Slot 6 | PCI Express 3.0 x8 in a x16 size |
Additional Information | |
| SLI Compatible | Yes |
| Crossfire Compatible | Yes |
| RAID Support | 0/1/5/10 |
| Bluetooth | Yes (4.2) |
| Dual GPU Slot Spacing | 3-Slot |
| Integrated IO Shield | Yes |
BIOS Features | |
| UEFI BIOS | Yes |
| EZ Flash | Yes |
| OC Profiles | Yes |
Dimensions | |
| Height | 305 mm (12.0 in) |
| Width | 244 mm (9.6 in) |
| Net Weight | 1.290 kg (2.8 lbs) |
