CR4

CR4 may refer to:

• 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

• 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 term

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