A priced round is a true equity round: investors buy newly issued shares at a negotiated price, the company's valuation is fixed, and the cap table updates immediately. Priced rounds require more legal work than SAFEs (full equity documents, board consents) and typically take 2 to 6 weeks to close.
Most Series A and later rounds are priced. The convention is that the lead investor negotiates the term sheet and follow-on investors accept those terms; specialty firms or strategics may negotiate side letters.