Ncomputing Xd3 Access Device — Official & Real
Most low-cost thin clients run a lightweight Linux kernel with a basic RDP (Remote Desktop Protocol) or HDX client. The XD3 takes a different approach. It is built on the NComputing vSpace Server ecosystem but supports open standards like Citrix HDX, VMware Blast, and Microsoft RDP.
However, the standout feature is the XD3’s hybrid USB stack. Unlike standard thin clients that struggle with multi-function printers, scanners, or USB license dongles, the XD3 uses a proprietary redirection engine that treats USB devices as if they were physically plugged into the host server.
The NComputing XD3 is a compact, fanless access device designed specifically for Virtual Desktop Infrastructure (VDI). Unlike a standard PC, the XD3 does not run applications locally. Instead, it connects to a centralized host server (Microsoft Azure, Amazon WorkSpaces, VMware Horizon, or on-premises Hyper-V) and renders the desktop remotely.
However, unlike older thin clients that struggle with video playback and USB redirection, the XD3 leverages high-end hardware decoding. It supports the Teradici PCoIP protocol, which is widely considered the gold standard for high-fidelity remote desktop experiences.
The NComputing XD3 was a specific model of access device (often referred to as a thin client or zero client) designed to extend the computing capabilities of a single host PC to multiple users. Part of NComputing’s legacy product line, the XD3 utilized the company’s proprietary X-series technology to enable "desktop virtualization" or Desktop Virtualization (VDI) through a direct hardware connection.
While newer models have since replaced the XD3 in the marketplace, it remains a notable example of resource-sharing technology designed for budget-conscious deployments in education, small business, and public access sectors. ncomputing xd3 access device
Engineering firms often avoid VDI because USB dongles (license keys) fail over network redirection. The XD3 locks onto the dongle at a hardware level. A user running SolidWorks or AutoCAD on a virtual machine sees the license dongle continuously, even if the network blips.
Pros:
NComputing took a boring category—the access device—and added genuine engineering value. The XD3 proves that thin clients don’t have to be dumb. By handling USB at the edge, it removes the last barrier to truly adopting VDI: “Will my weird USB thing work?” With the XD3, the answer is finally yes.
Rating: 4.3/5
Docked half a point for no PoE and a management console that looks dated, but full marks for solving USB redirection pain.
Disclosure: This feature is based on publicly available specifications, independent benchmark reports, and user community feedback as of early 2026. Performance may vary based on host VDI infrastructure. Most low-cost thin clients run a lightweight Linux
The NComputing XD3 Go to product viewer dialog for this item.
is an access device used in desktop virtualization, specifically designed for the X-series kits. It functions as a "thin client" that allows multiple users to share the resources of a single, powerful host PC simultaneously. Key Specifications & Features
Connectivity: Features an Ethernet (RJ-45) port for network connection and USB 2.0 ports for peripherals.
Virtualization: Works with the vSpace Pro Desktop Virtualization Software and a PCI/PCIe host card.
Efficiency: Consumes only about 1 watt of power per user, significantly lower than a standard PC's ~110 watts. Needs : No local OS – it downloads
Compact Design: Small enough to be mounted on the back of a monitor using a VESA mount. How It Works Host Setup: A PCI card is installed into a "host" PC.
Connection: The XD3 access devices connect to this host via standard Cat 5e or Cat 6 cabling (up to 10 meters/33 feet).
User Access: Peripherals like a monitor, keyboard, and mouse are plugged directly into the XD3. Shared Computing : Each
user gets an independent desktop experience, sharing the host PC's processing power. Benefits and Use Cases vSpace Pro Enterprise - NComputing