![HPE ProLiant XL645d User Manual Download Page 20](http://html1.mh-extra.com/html/hpe/proliant-xl645d/proliant-xl645d_user-manual_2175872020.webp)
Riser board components
A system board module supports primary, secondary, and tertiary riser board options. The primary and secondary riser
options support the installation of half-height, half-length (low profile) PCIe cards. The tertiary riser board contains the
HPE Smart Storage Battery connector.
Primary riser board components
Item
Description
1
Primary PCIe4 x16 riser connector 1
2
Storage controller backup power connector
Secondary riser board components
Component identification
20