Table 10. Internal slots
Description Values
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article
000144170 at www.dell.com/support.
Communications
Ethernet
Table 11. Ethernet specifications
Description Values
Model number
Intel i219-LM
Transfer rate
10/100/1000 Mbps
Wireless module
Table 12. Wireless module specifications
Description Values
Model number
Qualcomm QCA61x4a Qualcomm QCA9377 Intel AX201
Transfer rate
Up to 867 Mbps Up to 433 Mbps Up to 2.40 Gbps
Frequency bands supported
2.4 GHz/5 GHz 2.40 GHz/5 GHz 2.4 GHz/5 GHz
Wireless standards
802.11ac 802.11ac Wi-Fi 6 (WiFi 802.11ax)
Encryption
● 64-bit and 128-bit WEP
● 128-bit AES-CCMP
● TKIP
● 64-bit and 128-bit WEP
● 128-bit AES-CCMP
● TKIP
● 64-bit and 128-bit WEP
● 128-bit AES-CCMP
● TKIP
Bluetooth
5.0 5.0 5.2
Audio
The following table lists the audio specifications of your OptiPlex 7090 Micro.
Table 13. Audio specifications
Description Values
Audio type
4 Channel High Definition Audio
Audio controller
Realtek ALC3246
Internal audio interface
Intel HDA (high-definition audio)
External audio interface
● One Universal Audio Jack (front)
● One Line-out audio port with re-tasking to Line-in(rear)
Specifications of OptiPlex 7090 Micro 21
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