Users Guide

Internal slots
The following table lists the internal slots of your Inspiron 3881.
Table 8. Internal slots
Description Values
PCIe
● One PCIe x16 expansion card slot.
● One PCIe x1 expansion card slot.
SATA
● One SATA slot for optical-disk drive
● One SATA slot for 3.5-inch hard-disk drive
M.2
● One M.2 2230 slot for WiFi and Bluetooth combo card
● One M.2 slot for 2280 solid-state drive/Intel Optane or
2230 solid-state drive
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article
SLN301626 at www.dell.com/support.
Ethernet
The following table lists the wired Ethernet Local Area Network (LAN) specifications of your Inspiron 3881.
Table 9. Ethernet specifications
Description Values
Model number
Intel I219-V
Transfer rate
10/100/1000 Mbps
Wireless module
The following table lists the Wireless Local Area Network (WLAN) module specifications of your Inspiron 3881.
Table 10. Wireless module specifications
Description Option one Option two Option three
Model number
Qualcomm QCA9377
(DW1810)
Qualcomm QCA61x4A
(DW1820)
Realtek RTL8723DE
Transfer rate
Up to 433 Mbps Up to 867 Mbps 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 4.2 Bluetooth 4.2
Specifications of Inspiron 3881 17