# Internal USB 3.2 Gen 1 (3.1 Gen 1) interface card Sunix USB2321C — PCI host, 20 Gbit/s, 79.3×68.5 mm

**URL:** https://aio.lv/en/product--sunix-usb2321c--11867208
**Data updated:** 2026-03-09 17:44 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** Sunix
**Manufacturer code:** USB2321C
**EAN:** 4710747380766
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 59.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 49.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sunix-usb2321c--11867208

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Sunix USB2321C is an internal interface card that provides USB 3.2 Gen 1 (3.1 Gen 1) output via a PCI host interface. The card supports a maximum aggregate data transfer rate of 20 Gbit/s and has compact dimensions of 79.3 × 68.5 mm. It is intended to add high-speed USB ports to desktop systems for external storage, peripherals and data transfer tasks.

## Long description

Sunix USB2321C is an internal PCI Express interface card that adds a single SuperSpeed USB Type-C port to a desktop system. Designed for installation into a PCIe x4 (Gen3) slot, the card provides up to 20 Gbit/s aggregate data throughput using USB 3.2 Gen2x2 operation while remaining compatible with earlier USB generations. Its compact PCB (79.3 × 68.5 mm) fits standard tower or small-form-factor desktop systems and delivers reversible Type-C connectivity with built-in over-current protection and up to 5 VDC @ 1.5 A power to connected devices.
Advantages
The Sunix USB2321C enables higher data transfer speeds by supporting two 10 Gbit/s lanes for a combined 20 Gbit/s throughput, which provides significantly faster transfers compared with USB 3.2 Gen 2x1 and Gen 1x1 solutions. Because it uses a USB Type-C DFP receptacle, it offers a reversible plug for simplified connections and broad compatibility with USB 3.2, 3.1, 3.0 and legacy USB devices. The card also includes hot-swap capability and per-port over-current protection to improve system safety and convenience when connecting external storage or peripherals.
Suitable for
High-speed external storage and NVMe enclosures requiring SuperSpeed USB Type-C links
Transferring large media files from cameras, video capture devices and drones
Desktop systems needing an additional modern USB-C port for peripherals and docking
Workstations that benefit from faster backups, file transfers and media editing workflows
Key specifications
Host interface: PCI Express (PCIe Gen3, x4 lanes)
Output interface: USB Type-C, USB 3.2 Gen2x2 (up to 20 Gbit/s)
Data rates supported: 20 Gbit/s, 10 Gbit/s, 5 Gbit/s, 480 Mbps, 12 Mbps, 1.5 Mbps
Power output to device: 5 VDC @ 1.5 A with built-in over-current protection
Form factor: internal PCB, dimensions 79.3 × 68.5 mm
Compatibility: backward compatible with USB 3.2/3.1/3.0/2.0/1.1 devices
Hot-plug capable: connect/disconnect without powering down the system
Standards: xHCI host controller compliance and electromagnetic safety certifications (CE/FCC/VCCI/BSMI), RoHS compliant
How to use
Install the Sunix USB2321C into an available PCI Express x4 (or larger) slot on a powered-off desktop motherboard, secure the card bracket to the chassis, and reconnect power. After booting the operating system, install any required drivers for Windows 8.x or 10 if the OS does not automatically recognize the card. Connect USB devices using a compatible USB Type-C cable; the reversible connector simplifies insertion. The card supports hot-plugging, so devices can be connected or removed while the system is running, subject to safe removal procedures from the operating system.
Usage recommendations
For optimal performance, use USB 3.2 Gen2x2–capable peripherals and high-quality certified USB-C cables rated for 20 Gbit/s. Ensure the host system provides an available PCIe x4/ x8/ x16 slot and updated chipset/BIOS firmware. When connecting power-hungry devices, verify device power requirements do not exceed the card's 5 VDC @ 1.5 A output and use externally powered hubs or devices when necessary.

## Specifications

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 95 |
| Operating temperature (T-T) | 0 - 60 |
| Storage relative humidity (H-H) | -20 - 70 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Host interface | PCI |
| Output interface | USB 3.2 Gen 1 (3.1 Gen 1) |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 1 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 79.3 mm |
| Depth | 68.5 mm |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Y |
| Linux operating systems supported | Y |

### Design

| Feature | Value |
|---|---|
| Internal | Yes |

### Performance

| Feature | Value |
|---|---|
| Hot-swap | Yes |

### Features

| Feature | Value |
|---|---|
| Data transfer rate (max) | 20 Gbit/s |

### Packaging data

| Feature | Value |
|---|---|
| Mounting brackets included | Yes |

## FAQ

### How much does the Sunix USB2321C internal USB 3.2 Gen 1 PCI card cost, and is it available for purchase?

The price is 59.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 08.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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 Sunix 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 Sunix 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: host interface, internal, output interface, 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.

## Image

https://aio.lv/img/cache/product/11867208/67435876_large.webp