Tektronix DSA7200420 GHz, 4CH, Digital Signal AnalyzerThe Tektronix DSA72004 is one of our refurbished 20GHz, 4CH Digital Signal Analyzers.Tektronix DSA72004 Features:Bandwidth: 20GHzSample Rate: 50GS/s on all 4 channelsStandard Memory: 20M per channel on all 4 channels (Opt 2XL)Maximum Memory: 200M per channel on all 4 channels (Opt 20XL)Waveform Capture Rate: > 300,000 wfms/second on all 4 channelsEnhanced Bandwidth to the Probe Tip Extended to Support Multiple Bandwidth Steps for Advanced Signal Integrity.Pinpoint® Triggering, with over 1400 Combinations to Address Virtually Any Triggering SituationUnique Serial Pattern Triggering up to 3.125 Gbps and 8b/10b Standard Protocol Triggering for Isolation of Pattern-Dependent Effects and NRZ Serial Test Pattern Triggering up to 6.25 GbpsSerial Data Analysis and Compliance for PCI Express, Serial ATA, FB-DIMM, SAS, Fiber Channel, IEEE1394b, RapidIO, XAUI, HDMI, DVI, Ethernet, USB 2.0High-Speed Serial Data Link Analysi