Purchase the Tektronix TEK-SUP3 SREMBD Upgrade Option to add embedded serial triggering and analysis (I2C, SPI) to your 3 Series MDO Mixed Domain Oscilloscope. This is an after-purchase upgrade. Oscilloscope not included. Note: Software option key products require that the instrument model and serial number be provided at the time of purchase. The software option key is specific to the model and serial number combination. A one-time, permanent upgrade to any model is enabled through the software option key. https://elecena.pl/product/28403358/tektronix-tek-sup3-srembd-embedded-serial-triggering-amp-analysis-i2c-spi 2025-04-14 https://elecena.pl/product/28403358/tektronix-tek-sup3-srembd-embedded-serial-triggering-amp-analysis-i2c-spi 2025-04-29 https://elecena.pl/product/28403358/tektronix-tek-sup3-srembd-embedded-serial-triggering-amp-analysis-i2c-spi 2025-05-15 https://elecena.pl/product/28403358/tektronix-tek-sup3-srembd-embedded-serial-triggering-amp-analysis-i2c-spi 2025-06-22 https://elecena.pl/product/28403358/tektronix-tek-sup3-srembd-embedded-serial-triggering-amp-analysis-i2c-spi 2026-02-12