X2 may refer to:
==Computers== X2 (protocol), a pre-V.90 standard for 56k downstream modem communications Athlon 64 X2, the first dual-core desktop CPU manufactured by AMD A two-lane PCI Express, slot A type of optical transceiver for 10 Gigabit Ethernet X2, a transport interface used to connect enodeBs in a LTE/4G network
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).