External Ports; Internal Slots; Wireless Module - Dell Inspiron 15 3521 Setup And Specifications

External ports

The following table lists the external ports on your Inspiron 15 3521.
Table 7. External ports
Description
USB ports
Audio port
Video port/ports
Media-card reader
Power-adapter port
Security-cable slot

Internal slots

The following table lists the internal slots of your Inspiron 15 3521.
Table 8. Internal slots
Description
M.2

Wireless module

The following table lists the Wireless Local Area Network (WLAN) modules supported on your Inspiron 15 3521.
Table 9. Wireless module specifications
Description
Model number
Transfer rate
Frequency bands supported
Wireless standards
Encryption
Values
● Two USB 3.2 Gen 1 ports
● One USB 2.0 port
One headset (headphone and microphone combo) port
● One HDMI 1.4 port
One SD-card slot
One DC-in port (4.5 mm standard plug)
N/A
Values
● One M.2 2230 Key-E slot for WLAN
● One M.2 2230/2280 slot for solid-state drive
Option one
Intel 9462
Up to 433 Mbps
2.40 GHz/5 GHz
● WiFi 802.11a/b/g
● Wi-Fi 4 (WiFi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article
000144170 at www.dell.com/support.
Option two
Realtek RTL8821CE
Up to 433 Mbps
2.40 GHz/5 GHz
● WiFi 802.11a/b/g
● Wi-Fi 4 (WiFi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
Specifications of Inspiron 15 3521 13