Dell Vostro 3681, Setup And Specifications, Page: 14 / 21

Table 6. Ports and connectors (continued)
Description Values
Memory card reader
SD 4.0 card reader (optional)
Security
● One Kensington cable lock slot
● One Padlock ring
Internal
Expansion
● One half-height PCIe x1 slot
● One half-height PCIe x16 slot
M.2
● One M.2 2230 slot for Wi-Fi/Bluetooth card
● One M.2 2230/2280 slot for solid-state drive
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article at
https://www.dell.com .
Communications
Ethernet
Table 7. Ethernet specifications
Description Values
Model number
Realtek RTL8111HS
Transfer rate
10/100/1000 Mbps
Wireless module
Table 8. Wireless module specifications
Description Values
Model number
Intel Wireless-AC 3165
802.11ac 1x1 +
Bluetooth 4.2 Intel Wireless-AC 9260 802.11ac 2x2 + Bluetooth
5.0 Realtek RTL8723DE
802.11bgn 1x1 +
Bluetooth v4.2
Transfer rate
Up to 433 Mbps Up to 1.73 Gbps Up to 150 Mbps
Frequency bands
supported
2.4 GHz/5 GHz 2.4 GHz/5 GHz 2.4 GHz
Wireless standards
● WiFi 802.11a/b/g
●
Wi-Fi 4 (WiFi
802.11n)
● Wi-Fi 5 (WiFi
802.11ac)
● WiFi 802.11a/b/g
●
Wi-Fi 4 (WiFi 802.11n)
● Wi-Fi 5 (WiFi 802.11ac)
● WiFi 802.11a/b/g
●
Wi-Fi 4 (WiFi
802.11n)
Encryption
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
Bluetooth
Bluetooth 4.2 Bluetooth 5.0 Bluetooth 4.2
14 Specifications of Vostro 3681