3Q9-00001 - Model 1664 Surface Pro 3 Docking Station with 48W AC Adapter

The 3Q9-00001 Model 1664 Docking Station transforms a compatible Surface Pro 3 into a desktop workstation while charging the tablet. Its mechanical side-docking design provides USB expansion, Gigabit Ethernet, external-monitor connectivity, audio, and a security-lock connection without requiring a separate USB host cable.

This listing includes the Model 1664 docking station, the correct Model 1627 48W AC adapter, and a compatible US two-prong wall power cable. Tablet, Type Cover, monitors, video adapters, network cable, and USB accessories are not included.

Technical Specifications

• Product Type: Mechanical tablet docking station
• Primary Part Number: 3Q9-00001
• Dock Hardware Model: 1664
• Compatible Product: Surface Pro 3
• Host Connection: Integrated Surface Pro 3 side-docking interface
• Total USB Ports: 5
• Video Interface: Mini DisplayPort
• Network Interface: Gigabit Ethernet
• Audio Interface: 3.5mm audio input/output combination jack
• Security: Kensingtn-style cable-lock slot
• Power Requirement: 12V DC at 4A
• Required Power: 48W
• Included AC Adapter Model: 1627
• Original Operating-System Support: Windows 8.1 and Windows 10
• Color: Black
• Approximate Dimensions: 12.9 × 3.8 × 4.4 inches
• Approximate Weight: 1.4 lb / 0.65 kg
• Cooling: Passive
• USB-C Support: No
• Thunderbolt Support: No

Ports and Connectivity

• USB 3.0 Type-A Ports: 3
• USB 2.0 Type-A Ports: 2
• Mini DisplayPort Video Output: 1
• RJ-45 Gigabit Ethernet Port: 1
• Ethernet Speed: 10/100/1000 Mbps
• 3.5mm Audio Input/Output Jack: 1
• 12V DC Power Input: 1
• Security-Lock Slot: 1
• Tablet Docking Interface: Integrated side connector
• HDMI Port: No
• DisplayPort Full-Size Port: No
• DVI Port: No
• VGA Port: No
• USB-C Port: No
• Memory-Card Reader: No

The dock’s single 3.5mm connection is an audio input/output combination jack. It should not be listed as separate microphone and headphone ports.

Monitor and Resolution Support

• Dock Video Output: 1 × Mini DisplayPort using the Surface Pro 3 DisplayPort 1.2 video path
• Direct Monitor Support: One external monitor connected directly to the dock
• Maximum Advertised Single-Monitor Resolution: Up to 3840 × 2160 at 30Hz on supported Surface Pro 3 configurations
• Core i3 Platform Maximum: Up to 2560 × 1600 at 60Hz
• Core i5 and Core i7 Platform Maximum: Up to 3200 × 2000 at 60Hz or 3840 × 2160 at 30Hz
• 4K at 60Hz: Not supported
• Extended Desktop: Supported
• Duplicate or Mirror Mode: Supported
• Internal Display Plus External Monitor: Supported
• Dual External Monitor Support: Supported through the dock Mini DisplayPort plus the tablet’s accessible Mini DisplayPort or through compatible DisplayPort 1.2 MST equipment
• DisplayPort Daisy-Chaining: Supported with monitors that provide DisplayPort 1.2 MST input and output
• HDMI Monitor Support: Requires a compatible Mini DisplayPort-to-HDMI cable or adapter
• DVI Monitor Support: Requires a compatible Mini DisplayPort-to-DVI adapter
• VGA Monitor Support: Requires an active Mini DisplayPort-to-VGA adapter

Actual resolution and refresh rate depend on the Surface Pro 3 processor configuration, graphics driver, number of active displays, monitor capabilities, cable quality, video adapter, and whether the tablet’s internal screen remains enabled. This dock should not be advertised as supporting 4K at 60Hz or dual 4K displays.

Interchangeable / Replacement Part Numbers

Confirmed regional and commercial package numbers using the same Model 1664 dock hardware:

3Q9-00001, 3Q9-00002, 3Q9-00003, 3Q9-00006, 3Q9-00007, 3QM-00001, 1664, X19-37477-01, 3Q900001, 3Q900002, 3Q900003, 3Q900006, 3Q900007, 3QM00001, X193747701

Included 48W AC Adapter

• Adapter Model: 1627
• Adapter Type: Docking-station AC power supply
• Maximum Output Power: 48W
• Input Voltage: 100–240V AC
• Input Current: 1.3A
• Input Frequency: 50–60Hz
• Output Voltage: 12V DC
• Output Current: 4.0A
• Dock-Side Connector: Approximately 4.5mm × 3.0mm round center-pin barrel connector
• AC Inlet: Two-slot IEC C7 figure-eight
• Required Wall Cable: NEMA 1-15P to IEC C7 two-prong power cord
• Regulatory Label Reference: MSIP-REM-PPQ-1627
• Additional Certification Reference: KTL SU10528-13007

Model 1664 identifies the docking station. Model 1627 identifies the correct 48W power adapter. These numbers describe different components and should not be combined as though they were interchangeable part numbers.

⭐➕ Compatible Replacement Wall Power Cable

The Model 1627 adapter accepts a standard two-prong IEC C7 figure-eight wall cable.

DF771 6FT Two-Prong AC Power Cable

Confirm that the adapter has the matching two-slot figure-eight AC inlet before ordering a replacement cable.

⭐➕ Need a Charger That Connects Directly to the Tablet?

The Model 1627 dock adapter has a round barrel connector and powers the docking station. It does not connect directly to the Surface Pro 3.

For direct tablet charging, use the separate Model 1625 Surface Connect adapter:

RC2-00001 Model 1625 36W Surface Connect AC Adapter

The Model 1625 36W charger and Model 1627 48W dock adapter are not interchangeable.

✅ Confirmed Compatibility

Surface Pro 3

✔️ Surface Pro 3 Model 1631
✔️ Surface Pro 3 Core i3 configurations
✔️ Surface Pro 3 Core i5 configurations
✔️ Surface Pro 3 Core i7 configurations
✔️ Surface Pro 3 with 64GB storage
✔️ Surface Pro 3 with 128GB storage
✔️ Surface Pro 3 with 256GB storage
✔️ Surface Pro 3 with 512GB storage

Compatibility is not affected by the tablet’s processor, memory, or storage capacity as long as the device is a genuine Surface Pro 3 with the original docking connection and enclosure dimensions.

Surface Pro 4 Conditional Compatibility

⚠️ Surface Pro 4 can be physically accommodated only when the specially designed Surface Pro 3 Docking Station fit adapter or spacer is installed. The adapter compensates for the Surface Pro 4 enclosure dimensions and is not included with this listing.

Microsoft provides official instructions and printable files for this application:

Surface Pro 4 Adapter for the Surface Pro 3 Docking Station

Without this physical adapter, the Model 1664 dock is a direct fit only for Surface Pro 3.

☑️ Key Features

☑️ Mechanical one-step docking for Surface Pro 3
☑️ Charges the tablet while docked
☑️ Includes the correct Model 1627 48W AC adapter
☑️ Includes a compatible US wall power cable
☑️ Three USB 3.0 Type-A ports
☑️ Two USB 2.0 Type-A ports
☑️ Gigabit Ethernet network connection
☑️ Mini DisplayPort external-monitor output
☑️ Up to 3840 × 2160 resolution at 30Hz on supported configurations
☑️ Multiple-monitor support through the two available Mini DisplayPort paths or DisplayPort MST
☑️ 3.5mm audio input/output combination jack
☑️ Kensingtn-style security-lock slot
☑️ No separate USB host cable required

⚙️ Fit Notes

• This is the mechanical Model 1664 dock designed specifically for Surface Pro 3.
• The dock is not a universal USB or USB-C docking station.
• The tablet connects through the dock’s integrated side interface; no separate USB host cable is used.
• Model 1627 is the correct 48W dock power supply.
• Do not substitute the Model 1625 36W direct-to-tablet charger for the dock adapter.
• Verify 12V output, 4A current, center-pin barrel connector, and connector dimensions before substituting another power supply.
• Surface Pro 1, Surface Pro 2, and Surface 3 use different mechanical docking stations.
• Surface Dock Model 1661 is a separate cable-connected product and is not interchangeable with Model 1664.
• Surface 3 Dock Model 1672 is physically different and is not interchangeable.
• Surface Pro 4 requires the separate physical fit adapter described above.
• Surface Pro 5, Surface Pro 6, Surface Pro 7, Surface Go, and newer devices are not included in the confirmed compatibility list.
• Mini DisplayPort adapters, MST hubs, display cables, monitors, Ethernet cables, tablets, Type Covers, and peripherals are not included.
• The maximum 4K refresh rate is 30Hz; this is not a 4K 60Hz docking station.
• Regional dock packages may contain different wall plugs even when the dock hardware is Model 1664.

⭐ Microsoft Drivers Manuals and Support Resources

Dock Identification and Port Guide
Docking Station Setup and Monitor Configuration
Surface Pro 3 Drivers and Firmware Download
Surface Pro 3 Firmware and Update History
Surface Pro 3 Specifications and Features
Surface Pro 3 User Guide PDF
Surface Pro 3 Deployment and Administration Guide
Surface Dock and Docking Station Troubleshooting
Surface Pro 4 Docking Station Fit Adapter Files

The Model 1664 dock does not use the modern Surface Dock firmware updater. Dock-related functionality is supported through the Surface Pro 3 driver and firmware packages. Microsoft has ended new driver and firmware servicing for Surface Pro 3, but previously released packages remain available.