U4322A SPCIe mid-bus probe PCIe 3.0, PCIe 2.0 and PCIe 1.0

Products: U4322A SPCIe mid-bus probe PCIe 3.0, PCIe 2.0 and PCIe 1.0


The Keysight U4322A is a PCIe mid-bus probe that supports 2.5 GT/s, 5.0 GT/s and 8.0 GT/s speeds. The U4322A comes with Keysight’s PCIe 3.0 analyzer uses Keysight’s unique ESP (Equalization Snoop Probe) technology, with the ability to tune the equalization algorithm used according to the type of channel the analyzer is monitoring. This ensures that the data captured in the analyzer is exactly what is on the wire. Without this capability, at 8GT/s, there is a high likelihood of misrepresentation of the data on the bus, which can lead to wasted hours, if not days in the validation cycle.
Keysight U4322A – Key Features & SpecificationsSupports 2.5 GT/s (Gen1), 5.0 GT/s (Gen2) and 8.0 GT/s (Gen3) speeds
Uses the ESP (Equalizing Snoop Probe) technology to ensure accurate data recovery in all Gen3 platforms and all link width x1 through x16
Micro spring-pin technology provides reliable contact to signal pads
Spring loaded cover on the probe tip ensures sensitive pins are protected when not in use
To reduce cost of test, ensures that only one type of probe is required for:

– X16 straight
– X16 swizzled X8 bi-directional
– Bi-furcation support (one link as 2 logical links)
Independent reference clock per 4 lanes for maximum layout flexibility


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