# Laptop dock / port replicator Lenovo GX91R64790 — USB‑C (USB 3.2 Gen 1), 5 Gbit/s, 3.5 mm, 3840×2160, grey

**URL:** https://aio.lv/en/product--lenovo-gx91r64790--11682860
**Data updated:** 2026-01-30 13:37 (EET)
**Category:** Docking Stations
**Manufacturer:** Lenovo
**Manufacturer code:** GX91R64790
**EAN:** 0195892113034
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Lenovo GX91R64790 is a wired laptop dock/port replicator with a USB‑C host interface (USB 3.2 Gen 1, 5 Gbit/s). It offers a 3.5 mm headphone connector, supports up to 3840×2160 digital resolution and is compatible with Windows 10 and Windows 11. Compact grey design (160×64×129 mm) simplifies connecting peripherals and external displays for work or home use.

## Long description

Lenovo GX91R64790 is a compact wired laptop dock with an integrated USB-C cable that connects to a notebook and provides data transfer and DisplayPort alternate mode for external displays. The grey dock simplifies connecting peripherals and a wired network while supporting up to 3840×2160 output resolution and a 3.5 mm combo audio jack. It is compatible with Windows 10 and Windows 11 and is intended for users who need a small, fixed-cable port replicator for workstations or home offices.
Advantages
The dock offers a fixed USB-C connection for easy setup, two USB-A ports with USB 3.2 Gen 1 (up to 5 Gbit/s) for fast data transfer, and an HDMI output that supports up to 4K at 60 Hz for high-resolution external displays. A 3.5 mm combo jack supports both CTIA and OMTP wiring standards, making it suitable for various headsets. Its compact footprint helps reduce desktop clutter while enabling multiple peripheral connections through a single host cable.
Suitable for
 Connecting a laptop to an external monitor or projector
 Expanding USB ports for mice, keyboards, and storage drives
 Using headsets or speakers via the 3.5 mm combo audio jack
 Small office or home office setups requiring a compact port replicator
Key specifications
 Host interface: USB-C with support for USB 3.2 Gen 1 (5 Gbit/s) and DisplayPort alternate mode
 USB ports: 2 × USB-A (USB 3.2 Gen 1, up to 5 Gbit/s)
 Video output: 1 × HDMI supporting up to 3840×2160 at 60 Hz
 Audio: 1 × 3.5 mm combo jack compatible with CTIA and OMTP headsets
 Compatibility: Windows 10 and Windows 11
 Color and size: grey; compact dimensions (approx. 160 × 64 × 129 mm)
How to use
Connect the fixed USB-C cable to a compatible laptop USB-C port that supports data and DisplayPort alternate mode. Attach an external display to the HDMI port, plug USB-A devices into the available ports, and connect a headset or speakers to the 3.5 mm combo jack. The dock draws power from the host laptop via the USB-C connection for data and video functions; ensure the laptop battery has sufficient charge or provide separate power to the laptop if required for charging or high-demand use.
Usage recommendations
For optimal video output, use a laptop USB-C port that explicitly supports DisplayPort alternate mode and set the external display resolution and refresh rate in the operating system. If you experience audio wiring incompatibility with a headset, try switching between CTIA and OMTP-compatible headsets or use an adapter.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Microphone in | No |
| Host interface | USB 3.2 Gen 1 (3.1 Gen 1) Type-C |
| HDMI ports quantity | 1 |
| Headphone connectivity | 3.5 mm |
| HDMI version | 2.0 |
| Combo headphone/mic port | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | No |

### Performance

| Feature | Value |
|---|---|
| Certification | CE, CB,FCC, EAC, VCCI, KCC, RCM, BSMI |
| Data transfer rate | 5 Gbit/s |
| Product colour | Grey |
| Card reader integrated | No |
| Housing material | Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS) |
| Maximum digital resolution | 3840 x 2160 |
| Maximum refresh rate | 60 Hz |
| Windows operating systems supported | Windows 11, Windows 10 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.055 kg |
| Height | 129 mm |
| Width | 160 mm |
| Depth | 64 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 20 - 95 |
| Operating temperature (T-T) | 0 - 35 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 67 g |
| Package depth | 65 mm |
| Package height | 14 mm |
| Package width | 163 mm |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Lenovo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Lenovo service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: usb 3.2 gen 1 (3.1 gen 1) type-a ports quantity, connectivity technology, usb 2.0 ports quantity, hdmi ports quantity, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Lenovo GX91R64790 laptop dock — USB‑C (USB 3.2 Gen 1)?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

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