The ISS module also known as Mini-Research Module 2 is Poisk.
Poisk is a Russian docking compartment on the International Space Station, and its name means “search” or “explore” in Russian. It launched on November 10, 2009, attached to a modified Progress spacecraft aboard a Soyuz-U rocket, then docked with the station’s Zvezda module two days later.
Although classified as a mini-research module, Poisk performs several jobs. It provides docking ports for Soyuz and Progress spacecraft, supports scientific equipment, and functions as an airlock for Russian Orlan spacesuit spacewalks. It has two docking ports and two inward-opening egress hatches.
A frequent source of confusion is Rassvet, which is Mini-Research Module 1. Poisk arrived first, despite its higher numerical designation, because the two modules were developed differently. Poisk resembles the earlier Pirs docking compartment and occupies Zvezda’s zenith, or space-facing, port; Pirs occupied the nadir port before its 2021 removal.