Communications; Audio - Dell Inspiron 3781 Setup And Specifications

Table 7. Internal ports and connectors (continued)
Description

Communications

Ethernet
Table 8. Ethernet specifications
Description
Model number
Transfer rate
Wireless module
Table 9. Wireless module specifications
Description
Model number
Transfer rate
Frequency bands supported
Wireless standards
Encryption
Bluetooth

Audio

Table 10. Audio specifications
Description
Controller
Stereo conversion
Internal interface
External interface
Speakers
Qualcomm QCA9565
(DW1707)
Up to 150 Mbps
Dual band 2.4 GHz
WiFi 802.11b/g/n
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
Bluetooth 4.0
Values
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article
SLN301626.
Values
Ethernet controller integrated to the system board
10/100 Mbps
Values
Qualcomm QCA9377
(DW1810)
Up to 433 Mbps
Dual band 2.4 GHz/5 GHz
WiFi 802.11a/b/g/n/ac
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
Bluetooth 4.2
Values
Realtek ALC3246
Supported
High-definition audio
Headset combo jack (stereo headphones/microphone-in)
Two
Specifications of Inspiron 3781
Qualcomm QCA61x4A
(DW1820)
Up to 867 Mbps
Dual band 2.4 GHz/5 GHz
WiFi 802.11a/b/g/n/ac
● 64-bit/128-bit WEP
● AES-CCMP
● TKIP
Bluetooth 4.2
13