  We report on optical follow-up observations of an X-ray source initially
detected by the Einstein Probe mission. Our investigations categorize the
source as an intermediate polar, a class of magnetic cataclysmic variables,
exhibiting an orbital period of 3.7614(4) hours and a white dwarf spin period
of 3.97 minutes. The orbital period was identified through TESS observations,
while our high-speed photometric data, obtained using the 1.9m and Lesedi 1.0m
telescopes at the South African Astronomical Observatory, revealed both the
spin and beat periods. Additionally, we present orbitally phase-resolved
spectroscopic observations using the 1.9m telescope, specifically centered on
the Hbeta emission line, which reveal two emission components that exhibit
Doppler variations throughout the orbital cycle.
