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Inspiron 15 (3521) USB Docking Station Video Dock Port Replicator

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Instantly transform your Inspiron 15 (3521) laptop into a desktop workstation!

This is a brilliant piece of equipment. It is one of our best sellers and works with every laptop made in the last 8 years. Just plug it in and you have every port imaginable including DVI Video (for a second monitor!), audio, Ethernet and more.

This amazing port replicator will give you a second display for your Inspiron 15 (3521) along with a 4 port USB hub, audio in/out, network port and more. And it connects in 3 seconds. Leave an external DVI monitor, keyboard and mouse connected to this port replicator and your Inspiron 15 (3521) laptop becomes a desktop instantly.

This docking station will work with 32-bit and 64-bit operating systems including Windows Vista, 7 and 8, as well as OSX.

Just plug it in and you can instantly connect your laptop to an external monitor display, keyboard and mouse, printer, Ethernet (wired internet) and other devices.
Part Number: ACP51USZ
Targus USB Docking Station with DVI Video ACP51US

" Product arrived ahead of schedule and does everything as advertised. What more can you ask for?
- peter grant ( 9/28/2015 )

Not sure if this is the right port replicator for your Inspiron 15 (3521)?

Inspiron 15 (3521) USB Docking Station Video Dock Port Replicator

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Inspiron 15 (3521) USB Docking Station Video Dock Port Replicator
Inspiron 15 (3521) USB Docking Station Video Dock Port Replicator
The "One Touch" interface enables users to quickly connect to an external monitor, keyboard, mouse, printer, speakers or other peripherals often used at home or in the office. The device features two high-power USB ports which allow users to power or charge peripherals such as a Blackberry, iPhone®/iPod® or camera.

Dell Inspiron 15 (3521) Port Replicator

This Dell Inspiron 15 (3521) Port Replicator was tested by Discount Electronics and is completely functional.

This Targus Docking Station is compatible with any laptop computer that has USB 2.0 capabilities. It connects to your PC through USB, allowing you to turn your notebook into a desktop workstation.

Product Features:

  • Plug and Play Connectivity
  • Ergonomic Cooling Design
  • Slip Resistant Rubber Heels
  • RoHS Compliant
  • Compatible with Windows XP, Vista and Windows 7 (32-bit and 64-bit)
  • Compatible with Apple OSX (Tiger, Leopard, Snow Leopard 32-bit/64-bit)
  • Supports Primary Video mode (uses external monitor as primary display)
  • Supports Extended Video mode (combines external display with notebook display)
  • Supports Mirror Video mode (notebook display is copied to external display, for presentations)

Ports & Connectors:

  • 1 x DVI-D (24-Pin Digital Video)
  • 4 x Hi-Speed USB 2.0 Ports (2 x Power Ports, 2 x Standard USB 2.0 Ports)
  • 1 x 10/100 Base-T Ethernet (RJ-45) Jack
  • 1 x Speaker Audio Out
  • 1 x Microphone Audio In
  • 1 x Securelock slot
  • 1 x Targus cable lock slot

Package Includes:

  • Docking Station
  • AC Adapter
  • USB Cable

NOTE: This dock requires updated drivers in order to work with Windows 10.  You can get the updated drivers here:

Looking for a different Dell Inspiron 15 (3521) Port Replicator? Click Here.

Product Type:
Product arrived ahead of schedule and does everything as advertised. What more can you ask for?
Unfortunately, I didn't need the dock at all and so it sits. If there is a charity who could use it let me know. Ann Modzelewski
I received it and got it working okay but now the laptop has problems with the main board and it is not working at all. Not because of the replicator but the laptop is a dell and is very old and the hard drive seems to have crashed as well. I just would like to return it after I get it back into the box if at all possible. I will just have to scrap the laptop as I have a desktop to use that I have had all along. Please advise if I can return it.
Product did as advertised. ..price was very good. ..Shipping was fast.
Very satisfied
Docking station works well with my Alienware laptop. Great product and easy setup.

Sam Frenchman (6/1/2015)
Works perfectly!!! I had an older version of this docking station and had some issues with it. This thing is ROCK SOLID and can't tell you how happy I am to have a reliable piece of hardware again... :-)
So far, no complaints. Timely shipping. Not difficult to set up. Works fine with printer. Waiting for camera data cable to arrive to upload photos. If that is as simple as the printer setup and operation, I will be a happy camper.
great product, great shipping time
Works Well with my Lenovo lap top. Windows 8.1
Docking station works very well. I was particularly impressed with the fast shipping. I ordered on Friday, received on Monday.
Great product! Enabled me to use my two monitors and ample USB.
Outstanding. Works great!
5 stars for service, 3 stars for the product. Hence, the 4 star median. Dock worked for 1.5 days after receipt. The problem appeared to be the VGA connection as all the other ports didn't present problems. However, when called, Discount Electronics customer service promptly agreed to send a replacement for the defective device. Here's hoping the replacement has no issues. But very much appreciated the prompt service.
Quick delivery and worked great. I just didn't understand that I would need an external power supply as my previous docking stations also powered the laptop.
Works well with my new Dell laptop. HDMI to VGA adapter included. I have a small workstation for my laptop and monitor, so this docking station is ideal because of its small profile. Could have used 1 or 2 more USB slots; otherwise it's fine.

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