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Internal slots
The following table lists the internal slots of your Latitude 5521.
Table 8. Internal slots
Description
M.2
Wireless module
The following table lists the Wireless Local Area Network (WLAN) module specifications of your Latitude 5521.
Table 9. Wireless module specifications
Description
Model number
Transfer rate
Frequency bands supported
Wireless standards
Encryption
Bluetooth
14
Specifications of Latitude 5521
Option one
Qualcomm QCA61x4A
Up to 867 Mbps
2.4 GHz/5 GHz
● Wi-Fi 802.11a/b/g
● WiFi 802.11n
● WiFi 802.11ac
● 64-bit and 128-bit WEP
● 128-bit AES-CCMP
● TKIP
5.0
Values
● Two M.2 2230 slots for solid-state drive 128 GB/256
GB/512 GB
● Two M.2 2280 slots for solid-state drive 256 GB/512 GB/1
TB/2 TB
● Two M.2 2280 slots for Self-Encrypting solid-state drive
256 GB/512 GB
● One M.2 2280 slots for 32 GB Intel® Optane™ Memory +
512 GB QLC 3D NAND
NOTE:
Intel® Optane™ Memory requires Gen 3
storage through Platform Controller Hub
● One SATA slot for 7 mm HDD 500 GB/1 TB/2 TB
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
Intel AX201
Up to 2400 Mbps
2.4 GHz/5 GHz
● Wi-Fi 802.11a/b/g
● Wi-Fi 4 (WiFi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● Wi-Fi 6 (WiFi 802.11ax)
● 64-bit and 128-bit WEP
● 128-bit AES-CCMP
● TKIP
5.2
Option three
Intel AX210
Up to 2400 Mbps
2.4 GHz/5 GHz/6 GHz
● Wi-Fi 802.11a/b/g
● Wi-Fi 4 (WiFi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● Wi-Fi 6E (WiFi 802.11ax)
● 64-bit and 128-bit WEP
● 128-bit AES-CCMP
● TKIP
5.2