Wireless module
The following table lists the Wireless Local Area Network (WLAN) modules that are supported on your Precision 3581.
Table 10. Wireless module specifications
Description Option one Option two
Model number
Realtek RTL8852BE Intel AX211
Transfer rate
Up to 1201 Mbps Up to 2400 Mbps
Frequency bands supported
2.4 GHz/5 GHz 2.4 GHz/5 GHz/6 GHz
Wireless standards
● WiFi 802.11a/b/g
● Wi-Fi 4 (WiFi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● Wi-Fi 6 (WiFi 802.11ax)
● WiFi 802.11a/b/g
● Wi-Fi 4 (WiFi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● Wi-Fi 6E (WiFi 802.11ax)
Encryption
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
Bluetooth wireless card
Bluetooth wireless card Bluetooth wireless card
NOTE: The version of the Bluetooth wireless card may vary depending on the
operating system that is installed on your computer.
WWAN module
The following table lists the Wireless Wide Area Network (WWAN) module supported on your Precision 3581.
Table 11. WWAN module specifications
Description Option one Option two
Model number
DW5823, Intel XMM 7560 R Global LTE-
Advanced, CAT16
5G DW5931e, Intel 5G 5000 Global
Gigabit NR/LTE, 3GPP Release 15
Form factor
M.2 3042 Key-B M.2 3042 Key-B
Host interface
PCIe Gen2 PCIe Gen3
Network standard
LTE FDD/TDD, WCDMA/HSPA+,GPS/
GLONASS/BDS/Galileo
LTE FDD/TDD, WCDMA/HSPA+, GNSS/
Beidou NR FR1(Sub6) FDD/TDD,
LTE FDD/TDD, WCDMA/HSPA+, GPS/
GLONASS/Galileo/BDS/QZSS
Transfer data rate
● Up to 1 Gbps DL (CAT16)
● Up 150 Mbps UL
● SA: DL 4.67Gbps/UL 1.25Gbps
● NSA: DL 3.74Gbps/UL 700Mbps
● LTE: DL 1.6Gbps (CAT19)/UL
150Mbps
● UMTS: DL 384 kbps/UL 384 kbps
DL DC-HSPA+: 42 Mbps (CAT24)/UL
11.5 Mbps (CAT7)
20 Specifications of Precision 3581