Lemon tree PCIe 3.0 x4 USB-C Card

SpecPicks Verdict

SpecPicks scored Lemon tree PCIe 3.0 x4 USB-C Card using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Lemon tree's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

• REAL SPEED CLARITY – This PCIE to USB C card uses the ASM3142 controller with a PCIe 3.0 x4 physical connector while operating at PCIe 3.0 x2 upstream bandwidth. That means you get honest performance expectations instead of vague “full-speed” claims, helping you avoid the frustration of buying a card that sounds faster on paper than it performs in real use.
• CLEAR COMPATIBILITY INFO – Built for desktop expansion with support for Windows 7, Windows 10, and Windows 11, this USB C PCIe card is designed for stable data connectivity across common PC builds. We present compatibility more clearly so buyers can plan ahead, especially when working with older systems that may require driver installation.
• DUAL USB-C UPGRADE – Add 2 USB 3.2 Gen 2 Type-C ports to a desktop PC and connect external SSDs, USB-C storage, docking accessories, VR gear, and more. It is a practical way to modernize an older motherboard or expand a newer build without replacing the whole system just to gain faster and more convenient USB-C connectivity.
• BETTER CASE FIT – Includes both full-profile and low-profile brackets, giving you more flexibility for standard desktop towers and compact PC cases. This helps reduce installation hassle, improves case compatibility, and makes the card a more convenient option for DIY upgrades, office PCs, workstation refreshes, and small form factor builds.
• DATA-FOCUSED DESIGN – Designed for high-speed USB-C data expansion, this card is ideal for file transfer, backup, media workflows, and everyday external device connectivity. Product size is about 4.72 x 3.15 x 0.6 inches, making it easy to integrate into many desktop builds while keeping your upgrade path simple and cost-effective.

Full Specifications

Ready to buy?

PCIe 3.0 x4 USB-C Card, 2-Port USB 3.2 Gen 2, ASM3142, x2 Bandwidth | Adds two USB-C ports up to 10Gbps for external SSDs; supports Windows 7/10/11 with full and low-profile brackets. is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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