VU27P and VU29P devices contain faster GTM transceivers (supporting 58 Gb/s PAM4 technology) in place of some GTY transceiver locations in the VU13P. The addition of the GTM tiles in the VU27P/VU29P results in some key areas that affect the PCB migration path between these devices. The following sections contain the necessary items to review for optimal migration between the VU13P and VU27P/VU29P devices.