Lenovo ThinkStation P520 Hardware Maintenance Manual page 48

FRUs in the flex module
Figure 6. FRUs in the flex module
Number
1
Flex module
2
eSATA connector
3
IEEE 1394 connector
4
USB-C connector
5
Front Thunderbolt adapter kit
6
15-in-1 card reader
7
Slim optical drive
40
P520 Hardware Maintenance Manual
FRU description Self-service CRU Optional-service CRU
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No