Will they be updating this board to be compatible with 14th Gen Intel CPU's?

It already is. I am currently running the 14900k.

Do these have the spelling error?

if they do you can contact asus and they will give you a one that doesnt

Can this board support 300 ohm headphones?

This board can run 600 ohm just fine.

Questions & Answers: ASUS ROG MAXIMUS Z790 HERO EVA-02 EDITION LGA 1700 (Intel 13th &12th Gen) ATX Gaming motherboard (DDR5, 5x M.2 slots, PCIe 5.0 NVMe SSD slot on Hyper M.2 Card, PCIe 5.0 x16, Wi-Fi 6E)

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ASUS ROG MAXIMUS Z790 HERO EVA-02 EDITION LGA 1700 (Intel 13th &12th Gen) ATX Gaming motherboard (DDR5, 5x M.2 slots, PCIe 5.0 NVMe SSD slot on Hyper M.2 Card, PCIe 5.0 x16, Wi-Fi 6E)

Intel LGA 1700 socket: Ready for 13th Gen Intel Core processors & 12th Gen Intel Core, Pentium Gold and Celeron Processors
Robust Power Solution: 20 + 1 teamed power solution rated for 90A per stage with dual ProCool II power connectors, high-quality alloy chokes, and durable capacitors to support multi-core processors
Optimized VRM Thermals: Massive heatsinks integrated with the I/O cover, joined by an L-shaped heatpipe, and connected to the power stages with high-conductivity thermal pads
Next-Gen M.2 Support: PCIe 5.0 M.2 slot on the bundled ROG Hyper M.2 card, and four PCIe 4.0 M.2 slots all with substantial cooling solutions
Abundant Connectivity: Dual Thunderbolt 4 USB Type-C ports, USB 20Gbps Type-C front-panel connector with Quick Charge 4+ up to 60W, six additional USB 10Gbps ports, two PCIe 5.0 x16 SafeSlots, HDMI 2.1
High-Performance Networking: On-board Intel WI-FI 6E (802.11ax) and Intel 2.5 Gb Ethernet with ASUS LANGuard

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