Provides two external USB 3.0 connections.Backed by a lifetime warranty and free lifetime technical support.

Dual profile design to fit into Full or Low Profile/small form factor (SFF) systems.

SuperSpeed USB 3.0 connectivity at up to 5 Gbps and 80% more power than USB 2.0.

In addition to providing a much faster transfer rate the PEXUSB3S2 USB 3.0 card also supplies 900mA of power per USB port, allowing more and more external devices to operate without the need of an additional power source. Providing speeds up to 10x faster than that of USB 2.0, this PCI Express USB 3.0 card enables you to access your data and transfer files much faster than USB 2.0, by adding two USB 3.0 ports to your PCI Express capable PC.įeaturing a native NEC PCI Express host controller chipset, the new USB 3.0 standard supports transfer rates of up to 5Gbps, while still providing connectivity and support for the older USB 2.0 (480Mbps) and 1.1 (12Mbps) devices. Link to StarTech item is as follows: (DETAILED INFO BELOW)ĭriver for USB3.0 Host Controller from Device Manager Properties is: Renesas Electronic Corporation, File Version 2.1.29.0 (nusb3drv 122611-0917)Ģ Port PCI Express SuperSpeed USB 3.0 Card Adapter PEXUSB3S2

Yes, it was a expansion card for the original system from Dell. Unclear why USB3.0 runs worse than USB2.0. No idea how to deal with potential BIOS issues.Ģ) Using (same) USB2.0 cable on a USB2.0 port (without any other devices on the buss), bars are all GREEN and reported CONCLUSION is that 'Your system appears to be suitable for handling real-time audio and other tasks without dropouts.' Highest TOTAL EXECUTION (ms) was about 114,000 for but all Microsoft updates are current. Highest TOTAL EXECUTION (ms) was about 90,000 for but am running latest driver supplied by expansion card vendor. Check for BIOS updates.' INTERRUPTS TO USER PROCESS LATENCIES at 1,300 are approx 4 times what they were in scenario (2) below which were reported at approx. Disable CPU throttling settings in Control Panel and BIOS setup. Do NOT get any YELLOW or RED bars but reported CONCLUSION is that 'Your system seems to have difficulty handling real-time audio and other tasks.One problem may be related to power management. Thanks for great how-to', niemiro!ġ) Using USB2.0 cable on a USB3.0 PC port feeding a USB2.0 self-powered DAC. New to thread.and also to computer music servers.

Usb 2 vs usb 3 latency