Here’s the page we think you wanted. See search results instead:


Contact an Expert

U4305A PCIe Exerciser & PCIe LTSSM Exerciser

Product Status: Discontinued | Currently Supported
This product is no longer available

A replacement for this product is available:

Key Features & Specifications

Hardware support

  • Supports 2.5 GT/s (Gen1), 5.0 GT/s (Gen2) and 8.0 GT/s (Gen3) speeds
  • Link width support x1 through x16 lanes
  • Standard PCIe Half-size card form factor to fit into most platforms

LTSSM software capabilities

  • Pre-defined LTSSM tests to help validate the complex and hard-to-test state transitions of the DUT’s LTSSM
  • Detailed reporting to clearly define source of problem for faster debug
  • Easy-to-use test architecture, single click to run all tests

NVMe Root Complex (RC) emulation

  • Scan and initialize the NVMe registers, queues, and interrupts
  • Configure submission queue Head and Tail pointers and completion queue head pointer
  • Add NVMe commands to submission queues and submit these to the NVMe DUT. The commands are available as predefined templates
  • Create PRP lists and PRP entries, or SGL entries and SGL lists, that can be used in the submitted NVMe commands for data transfer

Additional PCIe testing

  • Emulate an NVMe drive
  • Test automation with scripting support for TCL, Python, and C
  • Protocol Test Card (PTC): Test and validate according to the PCI-SIG test specification


PCIe® - PCI Express and PCIe are registered trademarks of PCI-SIG.

Keysight´s PCIe protocol analyzer is a combination of hardware and software features that ensures the fastest time to insight.

Thorough link testing

The U4305A PCIe 3.0 exerciser with pre-defined LTSSM test cases can help validate the complex and hard-to-test state transitions of DUT´s LTSSM. With the ability to emulate either a root complex or an end point in the same card, the U4305A PCIe 3.0 exerciser can help you validate your device whether it is a server or an add-in card. The emulated personality is easily switched through a simple software switch. The LTSSM test cases come with detailed reporting to clearly define the source of the failures, if found, for fast debug.

NVMe testing

Keysight’s NVMe emulator allows users to test devices and create operational scripts that will allow hardware and software developers to simulate a host root complex. The emulator is able to test all of the NVMe functions of a storage device and from queue management to sending traffic loads to create test scenarios to prove device operation.

Aside from the pre-defined LTSSM test cases, the U4305A PCIe 3.0 exerciser can be controlled also through a built-in API interface, which is backward compatible with Keysight’s PCIe 2.0 exerciser. This allows customers to leverage test cases they have already developed for maximum investment protection.

Learn more about Protocol Analyzer and Exerciser