The EMR8 is 5U wide, which takes 2 slots.

TheEMR8 (Enhanced Multi-Rate 8-port card)is a line card used in Huawei's optical transport platforms, such as theOSN 9800 series. It is designed to support multiple rates and services, including OTN, SDH, and Ethernet.

Key details about the EMR8:

Form Factor:The EMR8 is5U wideand occupies2 slotsin the chassis. This makes it suitable for high-density deployments requiring multi-service support.

Functionality:It provides flexible grooming and switching capabilities for various traffic types, making it ideal for metro and core networks.

Thus, the statement is correct.

References:

Huawei OSN 9800 Series Product Documentation

Huawei Line Card Specifications