Right; For Computers With Optical Drive - Dell Inspiron 5575 Setup And Specifications

Connect peripherals such as external storage devices, printers, and external
displays.
Supports Power Delivery that enables two-way power supply between devices.
Provides up to 15 W power output that enables faster charging.
NOTE: An adapter (sold separately) is required to connect a
DisplayPort device.
4 HDMI port
Connect a TV or another HDMI-in enabled device. Provides video and audio
output.
5 Network port
Connect an Ethernet (RJ45) cable from a router or a broadband modem for
network or Internet access.
6 USB 3.1 Gen 1 ports (2)
Connect peripherals such as external storage devices and printers. Provides data
transfer speeds up to 5 Gbps.
7 Headset port
Connect headphones or a headset (headphone and microphone combo).

Right

For computers with optical drive

1 SD-card slot
Reads from and writes to the SD card.
2 USB 2.0 port
Connect peripherals such as external storage devices and printers. Provides data
transfer speeds up to 480 Mbps.
3 Optical drive
Reads from and writes to CDs, DVDs, and Blu-ray discs.
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