Dell Precision 3551 Setup and specifications guide

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Communications

Table 1. Ethernet specifications
The following table provides the specifications of Ethernet that is supported by your Precision 3551.
Description	Values
Model number	Intel 1219-V/Intel 1219-LM Gigabit Ethernet controller
Transfer rate	10/100/1000 Mbps

Table 2. Wireless module specifications
The following table provides the wireless module specifications of Precision 3551.
Description	Values
Model number	Qualcomm QCA61x4A (DW1820)	Intel AX201	Intel AX201
Transfer rate	Up to 867 Mbps	Up to 2400 Mbps	Up to 2400 Mbps
Frequency bands supported	2.4 GHz/5 GHz	2.4 GHz/5 GHz	2.4 GHz/5 GHz
Wireless standards	WiFi 802.11a/b/g Wi-Fi 4 (WiFi 802.11n) Wi-Fi 5 (WiFi 802.11ac)	Wi-Fi 802.11a/b/g Wi-Fi 4 (Wi-Fi 802.11n) Wi-Fi 5 (Wi-Fi 802.11ac) Wi-Fi 6 (Wi-Fi 802.11ax)	Wi-Fi 802.11a/b/g Wi-Fi 4 (Wi-Fi 802.11n) Wi-Fi 5 (Wi-Fi 802.11ac) Wi-Fi 6 (Wi-Fi 802.11ax)
Encryption	64-bit/128-bit WEP AES-CCMP TKIP	64-bit/128-bit WEP AES-CCMP TKIP	64-bit and 128-bit WEP 128-bit AES-CCMP TKIP
Bluetooth	Bluetooth 5.0	Bluetooth 5.1	No