Lenovo System x3550 M5 Product Manual page 5

The following figure shows the rear of the x3550 M5 server with three PCIe low profile slots.
Figure 3. Rear view of the System x3550 M5
The following figure shows the locations of key components inside the server.
Figure 4. Inside view of the System x3550 M5
System x3550 M5 5