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Table 9. Wireless module specifications (continued)
Description
Bluetooth
Audio
The following table lists the audio specifications of your Inspiron 15 3521.
Table 10. Audio specifications
Description
Audio controller
Stereo conversion
Internal audio interface
External audio interface
Number of speakers
Internal-speaker amplifier
External volume controls
Speaker output:
Average speaker output
Peak speaker output
Subwoofer output
Microphone
Storage
This section lists the storage options on your Inspiron 15 3521.
Your computer supports one of the following configurations:
● One 2.5-inch, 5400 RPM, SATA hard drive
● One M.2 2230/2280 solid-state drive
The primary drive of your computer varies with the storage configuration. For computers:
● with a 2.5-inch SATA hard drive, the 2.5-inch SATA hard drive is the primary drive
● with a M.2 2230/2280 solid-state drive, the M.2 2230/2280 solid-state drive is the primary drive
Table 11. Storage specifications
Storage type
2.5-inch 5400 RPM, hard-disk drive
M.2 2230 PCIe NVMe Class 35 solid-
state drive
M.2 2230 PCIe NVMe Class 35 solid-
state drive
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Specifications of Inspiron 15 3521
Option one
Bluetooth 5.1
Values
Realtek ALC3204
Supported
High definition audio interface
One headset (headphone and microphone combo) port
Two
Supported (audio codec integrated)
Keyboard shortcut controls
2 W
2.5 W
Not supported
Single digital microphone
Interface type
SATA 3.0, 6 Gbps
PCIe NVMe Gen3 x4
PCIe NVMe Gen4 x4
Option two
Bluetooth 5.0
Capacity
Up to 2 TB
Up to 1 TB
Up to 1 TB