--- product_id: 276155069 title: "StarTech 1-Port USB 20Gbps PCIe Card, TAA, Windows/macOS/Linux (PEXUSB321C)" brand: "startech.com" price: "360.17 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/276155069-startech-1-port-usb-20gbps-pcie-card-taa-windows-macos store_origin: TN region: Tunisia --- # 20Gbps blazing USB-C speed 15W power delivery for device charging PCIe 3.0 x4 lanes for max throughput StarTech 1-Port USB 20Gbps PCIe Card, TAA, Windows/macOS/Linux (PEXUSB321C) **Brand:** startech.com **Price:** 360.17 DT **Availability:** βœ… In Stock ## Summary > πŸš€ Upgrade your desktop with the ultimate USB-C speed boost! ## Quick Answers - **What is this?** StarTech 1-Port USB 20Gbps PCIe Card, TAA, Windows/macOS/Linux (PEXUSB321C) by startech.com - **How much does it cost?** 360.17 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/276155069-startech-1-port-usb-20gbps-pcie-card-taa-windows-macos) ## Best For - startech.com enthusiasts ## Why This Product - Trusted startech.com brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Universal Compatibility:** Works effortlessly across Windows, macOS, and Linux with plug-and-play ease. - β€’ **Power & Charge On-The-Go:** Deliver up to 15W to power or charge your USB-C devices without missing a beat. - β€’ **Blazing Fast USB-C 20Gbps:** Experience next-level data transfer speeds that keep you ahead of the curve. - β€’ **Seamless PCIe 3.0 x4 Integration:** Maximize your desktop’s potential with a high-bandwidth expansion card. - β€’ **Optimized for High-Performance Storage:** UASP support and multiple INs reduce bottlenecks for SSDs and NVMe drives. ## Overview The StarTech.com 1-Port USB 3.2 Gen 2x2 PCIe Card adds a single USB-C port capable of 20Gbps data transfer to your desktop via a PCI Express 3.0 x4 slot. Featuring the ASMedia ASM3242 controller, it supports fast access to high-performance devices like NVMe SSDs, delivers up to 15W power for charging, and is compatible with Windows, macOS, and Linux systems. Ideal for professionals seeking to future-proof their workstation with cutting-edge connectivity. ## Description This PCIe USB 3.2 Gen 2x2 controller card installs into an available PCI-Express x4 slot in your computer and enables you to upgrade your current system by adding a USB-C (20Gbps) port. The controller card enables you to connect USB-C Gen 2x2 (20 Gbps) devices to your desktop computer. The USB-C port is ideal for connecting USB devices such as external hard drives and solid state drives or charging and syncing your mobile devices. The USB-C port provides up to 15W (5V/3A) of power and is backward compatible with USB 3.2 Gen 2 (10 Gbps) and USB 3.2 Gen 1 (5 Gbps) devices. Note: USB 3.2 Gen 2 (10 Gbps) is also know as USB 3.1 Gen 2 (10 Gbps), and USB 3.2 Gen 1 (5 Gbps) is also know as USB 3.0 and USB 3.1 (5 Gbps). The USB 3.2 Gen 2x2 card features an ASMedia ASM3242 host controller that utilizes x4 lanes of the PCIe 3.0 bus, making the card capable of speeds up to 20Gbps and enabling fast access to high-performance devices like NVMe drives and SSDs. ## Features - HIGH PERFORMANCE: Add 1x USB-C SuperSpeed 20Gbps port to your desktop PC with this USB 3.2 Gen 2x2 PCIe Card; Expansion card provides up to 15W (5V @ 3A) to power & charge devices - FULL USB 3.2 GEN 2X2 SPEEDS: Featuring the ASMedia ASM3242 host controller using x4 lanes of PCIe 3.0, this card is fully capable of speeds up to 20Gbps enabling fast access to high-performance devices like NVMe drives and SSDs - MAXIMIZED USB PERFORMANCE: USB Type-C PCI Express card supports Multiple INs to reduce bandwidth loss when mix speed devices are connected to a Hub (hub must also support this feature); UASP support improves performance with storage devices - COMPATIBILITY: Add-on card installs in full or low-profile (bracket incl) PCIe 3.0 x4 slot (Backward compatible w/PCIe 2.0); Windows/Linux/macOS w/auto drivers Win 8 & up; Works w/USB 3.1/3.0/2.0 devices; Does not support DP-Alt mode for video over USB-C ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08T6FCF9S | | Best Sellers Rank | #31 in Internal USB Port Cards | | Brand | StarTech.com | | Built In Media | "PCI Express USB Card Full Profile Bracket (Installed) Low Profile Bracket Quick-Start Guide" | | Compatible Devices | Personal Computer, Laptop | | Customer Reviews | 4.5 4.5 out of 5 stars (248) 4.5 out of 5 stars | | Hardware Interface | PCI Express x4 | | Item Dimensions L X W X H | 2"L x 3.1"W x 0.9"H | | Item Weight | 1.28 ounces | | Manufacturer | StarTech.com | | Mfr Part Number | PEXUSB321C | | Model Number | PEXUSB321C | | Operating System | Linux | | Style Name | Classic | | Unit Count | 1.0 Count | | Upc | 065030891264 | | Warranty Description | 2 Year Warranty | ## Product Details - **Brand:** StarTech.com - **Hardware Interface:** PCI Express x4 - **Item Weight:** 1.28 ounces - **Product Dimensions:** 2"L x 3.1"W x 0.9"H - **Style:** Classic ## Images ![StarTech 1-Port USB 20Gbps PCIe Card, TAA, Windows/macOS/Linux (PEXUSB321C) - Image 1](https://m.media-amazon.com/images/I/61e7msVSRHL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ True Gen2x2 *by on Reviewed in the United States May 2, 2026* This card worked right out of the box. Installation was easy and it works in my PCIe 3.0 x4 slot at full bandwidth (of gen2x2, not the full 4 lanes of PCIe gen 3.0). No extra SATA power required like some other cards. I tested a gen2x2 thumb drive and got over 2,050 MB/s read and 1,865 MB/s write. My one gripe is the type C port is a bit high in the PCIe bracket, some cables with thicker housings may come close depending on the cable and your case. To use my Thunderbolt 5 cable (for testing), I had to put a little more pressure than normal for it to read the drive. If the port were slightly more centered then it wouldn't be a problem at all. ### ⭐⭐⭐⭐⭐ Super speedy. *by on Reviewed in the United States March 21, 2026* Just worked. Easy to install (I panicked because I didn't think I had the right PCIe slot, but it fits in the big one, just doesn't use all of the pins), perfectly compatible without extra drivers in Windows 11. 2x2 is super speedy and was compatible with the drive I needed it for. Very good value. ### ⭐⭐⭐⭐⭐ ASMedia ASM3242 works really well! *by on Reviewed in the United States January 24, 2024* I already have a USB C 3.2 Gen 2x2 20Gbps port on my motherboard (Aorus X570S Master), but I found out that the controller runs on a PCIe 3.0 x2 lane, which is not ideal. So I purchased this card thinking I will have two 20GBps port in total, and this being a PCIe 3.0 x4 controller, I'll get the full bandwidth.Installing the card was easy, it is tiny, and worked almost straightaway. I forgot that if I use the last PCIe slot, one of the M.2 slot will be disabled. So I had to move the M.2 SSD from the slot that shares the PCIe lane with the x4 slot to another M.2 slot. Restarted the PC, windows automatically installed the driver needed.Just as I thought, the card works faster than the built-in one, since it got the full x4 lane. It might work even better if I install it in the 2nd 16X slot, but I have a RAID controller installed there so couldn't do that.There was a nice 400MB/s bump, and the Acer Predator 4TB SSD installed in a Yottamaster 20GBps NVMe enclosure reached 2000MB/s on both read/write, which is sweet! Now I have 4 SSDs which can do my backups very very fast.A great card, works very well, and a no hassle installation. Just give it a slot where it can use PCIe 3.0 x4 lanes, and you are good to go. Also, a good 20GBps cable is recommended. ## Frequently Bought Together - StarTech.com 1-Port USB 3.2 Gen 2x2 PCIe Card, USB-C 20Gbps PCI Express 3.0 x4 Adapter, Data Only, Windows/macOS/Linux, TAA - StarTech.com 2-Port USB 3.2 Gen 2 PCIe Card, USB-C 10Gbps PCI Express 3.0 x4 Adapter, Data Only, Windows/macOS/Linux, TAA - Cable Matters 20Gbps USB C to USB C Monitor Cable 6 ft / 1.8m, Supports Up to [8K@30Hz / 4K@120Hz Video, 240W Charging, 20Gbps Data Transfer], USB C Video Cable/USB C Display Cable with USB 3.2 Gen 2 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/276155069-startech-1-port-usb-20gbps-pcie-card-taa-windows-macos](https://www.desertcart.tn/products/276155069-startech-1-port-usb-20gbps-pcie-card-taa-windows-macos) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-14*