Table 10. Wireless module specifications (continued)
Description Values
Wireless standards
● WiFi 802.11a/b/g
● Wi-Fi 4 (Wi-Fi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● Wi-Fi 6E (WiFi 802.11ax)
NOTE: 160 MHz channel use, MU-MIMO, new 6 GHz
band
Encryption
● 64-bit and 128-bit WEP
● AES-CCMP
● TKIP
Bluetooth
NOTE:
1. Computers that are shipped with Windows 11 support
Bluetooth 5.3 and computers that are shipped with
Windows 10 support Bluetooth 5.2.
2. Computers that are installed with Ubuntu operating
system do not support Bluetooth.
WWAN module
The following table lists the Wireless Wide Area Network (WWAN) module that is supported on your Precision 7780.
Table 11. WWAN module specifications
Description Option one
Model number
DW5930e, Qualcomm Snapdragon SDX55 5G
Transfer rate
Up to 3 Gbps DL/250 Mbps UL (3GPP Release15 NR/LTE
CAT20)
Frequency bands supported
● NR: (1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 41, 66, 77, 78, 79)
● LTE: (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28,
29, 30, 32, 34, 38, 39, 40, 41, 42, 46, 48, 66)
● HSPA+: (1, 2, 4, 5, 6, 8, 9, 19)
Wireless standards
● NR FR1(Sub6) FDD/TDD
● LTE FDD/TDD
● WCDMA/HSPA+
● GPS/GLONASS/Beidou/Galileo
Encryption
Not supported
Global Navigation Satellite System (GNSS)
Supports GPS, and GLONASS
NOTE: For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number,
see the knowledge base article 000143678 at www.dell.com/support.
Specifications of Precision 7780 17
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