Lenovo · Gaming · Available in the US

Legion 9i Gen 10 (18-inch)

Verified TB5. Yes. Lenovo documents two Thunderbolt 5 ports for the 18-inch Legion 9i Gen 10.

The exact family code is Legion 9 18IAX10, which separates this model from other Legion sizes and generations. The verified US configuration below is 83EY000XUS, with RTX 5090 graphics, 64GB of memory and a 4TB SSD.

Compare 1 exact configuration View manufacturer evidence

1 complete exact configuration. 1 has a current purchase link.

Ports: 2 × TB5
Display: 18-inch PureSight 3D
Family GPU range: RTX 5080 / 5090

Lenovo Legion 9i Gen 10 18-inch gaming laptop shown open from the front

Exact configurations

Verified Thunderbolt 5 SKUs

Confirm both Legion 9 18IAX10 and part number 83EY000XUS. Match the RTX 5090, 64GB and 4TB specification before using the listed purchase link.

83EY000XUS2 × TB5

Exact US SKU

RTX 5090 · 64GB · 4TB

Processor: Intel Core Ultra 9 275HX
Graphics: NVIDIA GeForce RTX 5090
Memory: 64GB DDR5
Storage: 4TB SSD

View at Lenovo

Additional manufacturer records

1 documented identifier, not purchase cards

At least one retail detail is still missing.

Family code, not a retail SKULegion 9 18IAX10
2 × TB5
Legion 9 18IAX10
Processor
Intel Core Ultra 9 275HX
Graphics
RTX 5080 / 5090
Lenovo documents 2 × TB5 for the Legion 9 18IAX10 family.

Reading the guide

What these details mean

The connector, Thunderbolt version and retail code answer different questions.

The connector does not identify the standard

Thunderbolt 5, Thunderbolt 4 and USB4 can all use a USB-C connector. A port photo cannot tell you which standard is present. For this family, rely on the Lenovo documentation, which lists 2 × TB5, together with the configuration details shown above.

Compare Thunderbolt 5, Thunderbolt 4 and USB4

What it changes in a gaming setup

Thunderbolt 5 affects external connections, not the speed of the laptop's built-in CPU or GPU. Its practical role is to connect compatible docks, displays, storage and other peripherals. Display modes, charging behavior and device performance still depend on both the laptop and the accessory.

See what connects to a Thunderbolt 5 laptop

Complete cards and partial records

This guide has two levels of detail. The exact cards above tie a retail identifier to CPU, GPU, memory and storage. The additional manufacturer records omit at least one of those details, so use them to understand the family, not as a substitute for a complete SKU at checkout.

Primary-source record