Inside view of your computer............................................................................................................................................. 16
System board layout............................................................................................................................................................ 18
3 Specifications of Dell Optiplex 3280 All-in-One .............................................................................19
Dimensions and weight........................................................................................................................................................19
Ports and connectors.......................................................................................................................................................... 21
Power adapter..................................................................................................................................................................... 25
Data security........................................................................................................................................................................ 28
Service and support............................................................................................................................................................ 42
4 Getting help and contacting Dell.................................................................................................. 43
Contents3
Steps
1. Set up the stand.
Table 1. Installing the stands
StandsInstalling the stands
1
Set up your computer
Fixed Stand
4Set up your computer
Table 1. Installing the stands(continued)
StandsInstalling the stands
Articulating
stand
Height
Adjustable
Stand
NOTE: Follow the same procedure to install the Height Adjustable Stand with Optical Disk Drive.
Set up your computer5
Table 1. Installing the stands(continued)
StandsInstalling the stands
2. Set up the keyboard and mouse.
NOTE: For setup instructions, see the documentation shipped with the keyboard and mouse.
6Set up your computer
3. Route the power cable through the stand, then connect the power cable.
Set up your computer
7
4. Press the power button.
8
Set up your computer
5. Finish Windows setup.
Follow the on-screen instructions to complete the setup. When setting up, Dell recommends that you:
•Connect to a network for Windows updates.
NOTE:
If connecting to a secured wireless network, enter the password for the wireless network access when
prompted.
Set up your computer9
•If connected to the internet, sign-in with or create a Microsoft account. If not connected to the internet, create an offline account.
•On the Support and Protection screen, enter your contact details.
6. Locate and use Dell apps from the Windows Start menu—Recommended
Table 2. Locate Dell apps
ResourcesDescription
SupportAssist
Pro-actively checks the health of your computer’s hardware and software. The SupportAssist OS Recovery
tool troubleshoots issues with the operating system. For more information, see the SupportAssist
documentation at www.dell.com/support.
NOTE: In SupportAssist, click the warranty expiry date to renew or upgrade your warranty.
Dell Update
Updates your computer with critical fixes and latest device drivers as they become available. For more
information about using Dell Update, see the knowledge base article SLN305843 at www.dell.com/support.
Dell Digital Delivery
Download software applications, which are purchased but not pre-installed on your computer. For more
information about using Dell Digital Delivery, see the knowledge base article 153764 at www.dell.com/
support.
10Set up your computer
Front
2
Views of Dell Optiplex 3280 All-in-One
1. Full HD webcam2. Camera-status light
3. Display4. Speakers
5. Power button/power-status indicator6. Array microphones
Views of Dell Optiplex 3280 All-in-One11
Retractable camera
NOTE: Depending on the configuration ordered, your computer will have only camera or both camera and Infrared
camera.
1. Camera
2. Infrared camera
3. Infrared emitter
4. Camera-status light
12
Views of Dell Optiplex 3280 All-in-One
Left
1. SD 3.0 card slot2. USB 3.2 Gen 1 Type-C port
3. Universal audio jack4. USB 3.2 Gen 1 Type-A port with PowerShare
Views of Dell Optiplex 3280 All-in-One13
Right
1.
Hard-drive status indicator
14
Views of Dell Optiplex 3280 All-in-One
Back
1. Back cover2. Stand cover
3. Kensington security-cable slot4. Back bottom cover
5. Stand
1. Cable cover screw hole2. DP++ 1.4/HDCP 2.3 port
Views of Dell Optiplex 3280 All-in-One15
3. RJ-45 port 10/100/1000 Mbps4. USB 2.0 ports with Smart Power On
5. USB 3.2 Gen 1 Type-A ports6. Line-out audio port
7. Power connector
Bottom
1. Display Built-in Self Test button
2. Service tag label
Inside view of your computer
NOTE: The appearance of heat sink differs depending on the graphics configuration you ordered.
DescriptionValues for touch displayValues for non-touch display
Height329.40 mm (12.96 in.)329.40 mm (12.96 in.)
Width497.90 mm (19.60 in.)497.90 mm (19.60 in.)
Depth54.50 mm (2.14 in.)54.50 mm (2.14 in.)
Weight (maximum)5.11 kg (11.26 lb)4.68 kg (10.31 lb)
Weight (minimum)4.75 kg (10.47 lb)4.34 kg (9.56 lb)
NOTE: The weight of your computer depends on the configuration ordered and the manufacturing variability.
Processors
NOTE:
Global Standard Products (GSP) are a subset of Dell’s relationship products that are managed for availability and
synchronized transitions on a worldwide basis. They ensure the same platform is available for purchase globally. This
allows customers to reduce the number of configurations managed on a worldwide basis, thereby reducing their costs.
They also enable companies to implement global IT standards by locking in specific product configurations worldwide.
Device Guard (DG) and Credential Guard (CG) are the new security features that only available on Windows 10 Enterprise today. Device
Guard is a combination of enterprise-related hardware and software security features. When you configure together, it locks a device
down so that it can only run trusted applications. If it is not a trusted application, it cannot run. Credential Guard uses virtualization-based
security to isolate secrets (credentials) so that only privileged system software can access them. Unauthorized access to these secrets
can lead to credential theft attacks. Credential Guard prevents these attacks by protecting NTLM password hashes and Kerberos Ticket
Granting Tickets.
NOTE:
Processor numbers are not a measure of performance. Processor availability subject to change and may vary by
region/country.
Table 4. Processors
ProcessorsWattageCore
10th Generation Intel Celeron
G5900T
10th Generation Intel Pentium Gold
G6400T
10th Generation Intel Pentium Gold
G6500T
35 W223.2 GHz2 MBIntel UHD Graphics 610
35 W243.4 GHz4 MBIntel UHD Graphics 610
35 W243.5 GHz4 MBIntel UHD Graphics 630
count
Thread
count
SpeedCacheIntegrated graphics
10th Generation Intel Core
i3-10100T
10th Generation Intel Core
i3-10300T
35 W483.0 GHz to 3.8 GHz6 MBIntel UHD Graphics 630
35 W483.0 GHz to 3.9 GHz8 MBIntel UHD Graphics 630
Specifications of Dell Optiplex 3280 All-in-One19
Table 4. Processors(continued)
ProcessorsWattageCore
10th Generation Intel Core
i5-10400T
10th Generation Intel Core
i5-10500T
10th Generation Intel Core
i5-10600T
35 W6122.0 GHz to 3.6 GHz12 MBIntel UHD Graphics 630
35 W6122.3 GHz to 3.8 GHz12 MBIntel UHD Graphics 630
35 W6122.4 GHz to 4.0 GHz12 MBIntel UHD Graphics 630
BIOS configuration Serial Peripheral Interface (SPI)256 Mbit (32 MB) located at SPI_FLASH
Trusted Platform Module (TPM) 2.0 (Discrete TPM Enabled)24 KB located at TPM 2.0 on chipset
Firmware-TPM (Discrete TPM disabled)By default the Platform Trust Technology feature is visible to the
NIC EEPROMLOM configuration contained within SPI flash ROM instead of
32 MB
Up to Gen 3
operating system.
LOM e-fuse
Operating system
•Windows 10 Home (64-bit)
•Windows 10 IoT Enterprise 2019 LTSC (OEM Only)
•Windows 10 Professional (64-bit)
•Windows 10 Pro Education (64-bit)
•NeoKylin 7.0 (China only)
•Ubuntu 18.04 (64-bit)
For more information about Dell OS Recovery image, see How to Download and Use the Dell OS Recovery Image in Microsoft Windows,
at Download and use the Dell OS Recovery Image.
Commercial platform Windows 10 N-2 and 5-year operating system supportability:
All newly introduced 2019 and later commercial platforms (Latitude, OptiPlex, and Dell Precision) will qualify and ship with the most current
factory installed Semi-Annual Channel Windows 10 version (N) and qualify (but not ship) the previous two versions (N-1, N-2). The
OptiPlex 3280 All-in-One will RTS with Windows 10 version v19H2 at time of launch, and this version will determine the N-2 versions that
are initially qualified for this platform.
20
Specifications of Dell Optiplex 3280 All-in-One
For future versions of Windows 10, Dell continues to test the commercial platform with coming Windows 10 releases during device
production and for five years post-production, including both fall and spring releases from Microsoft.
For additional information about N-2 and 5-year Windows operating system supportability, see the Dell Windows as a Service (WaaS), at
Dell support site.
EOML 411
The All-in-One system continues to test the coming Semi-Annual Channel Windows 10 version releases for five years post-production,
including both fall and spring releases from Microsoft.
Memory
Table 6. Memory specifications
DescriptionValues
Slots
Type
Speed
Maximum memory
Minimum memory
Memory size per slot
Configurations supported
Ports and connectors
Two SO-DIMM slots
DDR4, Non-ECC
2666 MHz
64 GB
4 GB
4 GB, 8 GB, 16 GB, 32 GB
•4 GB, 1 x 4 GB, DDR4, 2666 MHz
•8 GB, 1 x 8 GB, DDR4, 2666 MHz
•8 GB, 2 x 4 GB, DDR4, 2666 MHz
•16 GB, 1 x 16 GB, DDR4, 2666 MHz
•16 GB, 2 x 8 GB, DDR4, 2666 MHz
•32 GB, 2 x 16 GB, DDR4, 2666 MHz
•32 GB, 1 x 32 GB, DDR4, 2666 MHz
•64 GB, 2 x 32 GB, DDR4, 2666 MHz
Table 7. External ports and connectors
DescriptionValues
External:
Network
USB
Audio
Video
Media card reader
One RJ-45 Port 10/100/1000 Mbps (rear)
•One USB 3.2 Gen 1 Type-C port (side)
•One USB 3.2 Gen 1 Type-A port with PowerShare (side)
•Two USB 2.0 ports with Smart Power On (rear)
•Two USB 3.2 Gen 1 Type-A ports (rear)
•One Universal audio jack (side)
•One Line-out audio port (rear)
One DP++ 1.4/HDCP 2.3 port (rear)
One SD 3.0 card slot
Specifications of Dell Optiplex 3280 All-in-One21
Table 7. External ports and connectors(continued)
DescriptionValues
Docking port
Power adapter port
Security
Not supported
130 W, 7.4 mm x 5.1 mm
One Kensington security-cable slot
Table 8. Internal storage ports and connectors
DescriptionValues
Internal:
M.2
•One M.2 2230 slot for Wi-Fi and Bluetooth card
•One M.2 2230/2280 slot for SSD/Intel Optane
Communications
Ethernet
Table 9. Ethernet specifications
NOTE: To learn more about the features of different
types of M.2 cards, see the knowledge base article
SLN301626.
DescriptionValues
Model number
Transfer rate
REALTEK RTL8111HSD-CG
10/100/1000 Mbps
Wireless module
Table 10. Wireless module specifications
DescriptionValues
Model number
Transfer rate
Frequency bands supported
Wireless standards
Encryption
Intel Wi-Fi 6 AX200Qualcomm QCA61x4AIntel 3165
Up to 2400 MbpsUp to 867 MbpsUp to 433 Mbps
2.4 GHz/5 GHz2.4 GHz/5 GHz2.4 GHz/5 GHz
•Wi-Fi 802.11 a/b/g
•Wi-Fi 4 (WiFi 802.11n)
•Wi-Fi 5 (WiFi 802.11ac)
•Wi-Fi 6 (WiFi 802.11ax)
•64-bit/128-bit WEP
•AES-CCMP
•TKIP
•Wi-Fi 802.11 a/b/g
•Wi-Fi 4 (WiFi 802.11n)
•Wi-Fi 5 (WiFi 802.11ac)
•64-bit/128-bit WEP
•AES-CCMP
•TKIP
•Wi-Fi 802.11 a/b/g
•Wi-Fi 4 (WiFi 802.11n)
•Wi-Fi 5 (WiFi 802.11ac)
•64-bit/128-bit WEP
•AES-CCMP
•TKIP
Bluetooth
22Specifications of Dell Optiplex 3280 All-in-One
Bluetooth 5.1Bluetooth 5.0Bluetooth 4.2
Audio
Table 11. Audio specifications
DescriptionValues
Controller
Stereo conversion
Internal interface
External interface
Speakers
External volume controls
Speaker output:
Average
Peak
Subwoofer output
Microphone
Realtek codec ALC3246
Supported
High definition audio interface
Universal audio jack
Two
Not supported
2 W
2.5 W
Not supported
Two
Storage
Your computer supports one of the following configurations: