CR4 may refer to:
Science and technology
- Complement receptor 4, a complement receptor in the immune system
- CR4, a control register in the x86 CPU architecture
- 100GBASE-CR4 and 40GBASE-CR4, in 100 Gigabit Ethernet and 40 Gigabit Ethernet
Other uses
- CR4, four-firm concentration ratio, a measure of market concentration in economics
- CR4, a postcode district in the CR postcode area in England
- Pasir Ris East MRT station (CR4), an upcoming MRT station on the Cross Island Line in Singapore
Topics referred to by the same termThis disambiguation page lists articles associated with the same title formed as a letter–number combination.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: