The Modem (or modulator-demodulator) is a piece of hardware that unlocks both the Mailbox and the Browser (the latter of which can load websites faster due to the hardware). Although there is no modem when a player starts, it can be unlocked via basic hardware progression. As of version 0.9507, the highest-ranked obtainable modem is Barlink Tick Blue. It later turns into an internet router/ethernet cable starting from Progressbar Whisper, Progressbar Server 2002, BarOS 10, and Progressbar.PET 3.0, removing the need to dial-up entirely.
There are modems from various companies (which are based on real life companies), such as:
