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Keyspan US-4A 4-Port USB Server (12 Mbps)
 
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Keyspan US-4A 4-Port USB Server (12 Mbps)

Other products by Keyspan
3.4 out of 5 stars  See all reviews (26 customer reviews) More about this product

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30 new from $96.92

Frequently Bought Together

Customers buy this item with Keyspan High Speed USB Serial Adapter ( USA-19HS )

Keyspan US-4A 4-Port USB Server (12 Mbps) + Keyspan High Speed USB Serial Adapter  ( USA-19HS )
Price For Both: $125.32

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What Do Customers Ultimately Buy After Viewing This Item?

Keyspan US-4A 4-Port USB Server (12 Mbps)
60% buy the item featured on this page:
Keyspan US-4A 4-Port USB Server (12 Mbps) 3.4 out of 5 stars (26)
$96.92
Belkin F5L009 5-Port Network USB Hub
18% buy
Belkin F5L009 5-Port Network USB Hub 3.3 out of 5 stars (115)
$79.83
Keyspan High Speed USB Serial Adapter  ( USA-19HS )
8% buy
Keyspan High Speed USB Serial Adapter ( USA-19HS ) 4.7 out of 5 stars (151)
$28.40
Keyspan U2S-2A USB 2.0 Server
8% buy
Keyspan U2S-2A USB 2.0 Server 3.8 out of 5 stars (8)
$92.82

Technical Details

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Product Details

Data Sheet [499kb PDF]| Product Manual [1.30mb PDF]| Supplementary Guide [120kb PDF]
  • Product Dimensions: 1.2 x 2.8 x 3.2 inches ; 1.6 pounds
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B0001NA3L2
  • Item model number: US-4A
  • Average Customer Review: 3.4 out of 5 stars  See all reviews (26 customer reviews)
  • Date first available at Amazon.com: September 1, 2004

Product Description

Product Description

Connect USB devices to a PC or Mac via a wired or wireless LAN. Much like a print server, this USB Server enables attached USB devices to be used and shared by client PCs on a LAN (Local Area Network). In addition to printers, the USB Server supports other USB devices such as hard drives, scanners and more.

Buy This Product and Related Accessories

Keyspan US-4A 4-Port USB Server (12 Mbps)
96.92
$139.99 $96.92
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Customer Reviews

Average Customer Rating
3.4 out of 5 stars (26 customer reviews)
5 star:
 (7)
4 star:
 (7)
3 star:
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2 star:
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Most Helpful Customer Reviews

 
44 of 46 people found the following review helpful:
5.0 out of 5 stars Throw away your Print Server. This device is wonderful!, June 18, 2004
By Brian Fuchs (Thousand Oaks, CA USA) - See all my reviews
(REAL NAME)   
Amazon Verified Purchase(What's this?)
I opened the packing box 10 MINUTES AGO, and both of my printers are up and running on every PC.

I was a little worried when I saw the 'documentation' was smaller than a CD, but everything went off without a hitch:

Step 1: Power up the USB server with no USB device hooked up to it, and connect it to the network via RJ45.
Step 2: Install the software (if WinXP, use the unsigned drivers). Your OS searches the network at this time and finds the USB Server.
Step 3: Hook up your USB devices.

THAT'S IT!!!

If you have a Multi-Function printer, you NEED this device, because even if you find a compatible print server, it will only let you use the print function. A Printer Server turns your Multi-Function printer into a Uni-Function Printer.

With this device, it will be just as if the printer were directly connected to your PC. In fact, you are not limited to PCs; you can connect ANY USB device to it (camcorder, scanner, webcam, even a mouse or keyboard).

The ONLY advantage that a print server has over this device is that with a server, multiple PCs can control a target device at once (really, that's not quite true, since the requestes are put in a queue).

With the USB server, every PC uses a little administration program. When launched, it opens a window that lists all of the devices that are connected to the USB server. A PC on the network that wants to use a device (i.e. print) needs to first take command of that device. You just select the device by name, and hit the connect button. From that point on, it's as if the printer were plugged directly into your PC. Others trying to use the printer would see that you were subscribed to it; they would have to wait until you release the subscription - which you have to do manually.

They could really use a virtual queue that keeps checking until the subscription is open, then releases the subscription when the job is completed. The problem is that if the device isn't a printer, how does it know when the job is finished?

So, even if you have only one PC on the network, you need to request access to use the printer. On the (sort of) bright side, every time you power up the PC, it will remember who owns what. I think the memory is maintained in the USB Server itself, not the PC. So if a PC takes control of a device, then dies, cycling power on the server releases all devices.

This is a little hokey (they claim they MIGHT fix it in a later release) but it's 1000% better than losing printer functions you paid for. They have an 'Admin' panel on the software, but I don't think it currently lets you boot someone off of a device.

If you already installed the devices you want to share, then once you connect to the server, every device will show up by name. When you take control of one or more of the devices, Windows goes through the 'new device ready' popup.

If you haven't added the device to your PC, then the server will show a default name for the device. Once you take control of it, Windows will detect the PnP device, and start the 'add new hardware' wizard.

It's truly as if the USB server didn't exist, and you had a REALLY long USB cable.

I have a Canon i950 Photo Printer, and a Brother 9600 MFC.

The Brother is particularly painful in that it won't even work with most printer servers. In fact, Windows XP doesn't even have a dedicated driver for it; Brother has all but stopped supporting it.

I was highly skeptical, but the MFC's scanner worked right away. As for the Canon, I launched the Status Monitor, and was soon seeing I had to replace an ink cartridge. So, the USB server is bi-directional, too (most Print servers aren't).

It took me longer to write this review than it took me to get the server up and running.

I can't recommend this product highly enough!

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19 of 21 people found the following review helpful:
5.0 out of 5 stars Update to my previous review, June 18, 2004
By Brian Fuchs (Thousand Oaks, CA USA) - See all my reviews
(REAL NAME)   
Amazon Verified Purchase(What's this?)
It's been 10 minutes after I posted my last review...

In that time, I have installed the latest software and updated the firmware. The two really took me about 5 minutes.

The update adds a nice feature for single-PC networks. If a device is labeled a single-user device, then you don't need to take control of it every time you want to use it.

I also found out that it is possible to boot others off the server (actually everyone).

If you go to the Admin tab on the server SW, and edit the server settings (something simple like a password change), it will reboot the hardware (not your PC), which will disconnect all shared devices. This is a rather brute-force approach, but the manual doesn't indicate any other way.

Even after an extra 10 minutes of use, I think this device is the best thing since a USB thumb drive (which you can connect to the server as well).

This thing is just TOO COOL!!!!

- end of gushing -

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13 of 14 people found the following review helpful:
2.0 out of 5 stars Causes Windows blue screen of death, October 17, 2005
By R H (Palo Alto, CA) - See all my reviews
Despite the rave reviews for this product, I'm a bit more skeptical. I recently purchased an HP LaserJet 3015 MFC and wanted to use this device to connect to our office network. A couple of thoughts:

1. Toms Networking does a comparison between this product and Silex's SLX SX1000U. I would strongly suggest anyone thinking about buying this product to read the article. The article can be found at:

[...]

2. Although Silex's product only has one USB port, you *can* connect a USB hub to support up to 15 devices. The KeySpan device supports 4 devices, but you cannot add more devices.

3. I found that the unit would experience problems if I submitted a print job greater than 7 MB through the KeySpan. I reset the printer and nothing got fixed. Only when I power cycled the KeySpan did things work. I am using the latest version, v1.3.1, which also upgrades the KeySpan firmware.

4. Toms Hardware also reports that it would crash with several different devices. I read on other web sites that the Keyspan software causes the blue-screen-of-death (IRQ_LESS_THAN_EQUAL errors), so I tend to believe that the problem is caused more by the Keyspan drivers than the HP ones.

5. In some parts of its web site, KeySpan advertises that this unit supports USB v2.0, but if you read the fine print it's supporting at USB v1.1 speeds.

6. I discussed with KeySpan about connecting external hard drives. This unit is really meant for multi-function printers and cannot support external HD's.

7. I decided to return this product and try out the Silex instead. Although there is a lot of potential for this device, I would not suggest it for enterprise environments. I read the glowing Amazon reviews but would put more skepticism about their comments now that I have tried it for myself.

8. I will update this review later when I have a chance to try the Silex unit.
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Most Recent Customer Reviews

4.0 out of 5 stars love/hate this product
This product has produced plenty of hassles for me, but ultimately it (usually) gets the job done.

Suggestions for use with Vista (and even some XP machines): to... Read more
Published 2 months ago by P. Barker

2.0 out of 5 stars Incompatibility
It will not operate in Vista without crashing (my laptop crashes to the BSOD EVERY time I connect to the device). Read more
Published 2 months ago by D. Blake

3.0 out of 5 stars Not worth purchasing
The Keyspan US-4A does not work at all with Vista. It does not work well with external hard drives. It is very slow when using with other periphals. The support is terrible. Read more
Published 10 months ago by Lee's Collection

4.0 out of 5 stars Still messing with it, but basically works...
Like many here, I bought this Server so that I can share my all-in-one scanner/printer/fax without having to have it tied to a computer, and it left on. Read more
Published 11 months ago by Surviving in Atlanta

5.0 out of 5 stars Great for USB Hard Disk, MFP and old printers!
I had used the 4port print server for a couple of years until it finally died after a power outage from a storm. Read more
Published 16 months ago by Is5410

2.0 out of 5 stars Might be good?
This product may be good, but it was not compatible with our large format scanner (Colortrac SmartLF Cx40), so I can't accurately review the product itself. Read more
Published 19 months ago by Small Business

5.0 out of 5 stars Awesom gadget for a small office.
We have a small office with 4 computers lan-network connected, but we have had a few USB printers each one connected to one different computer and shared through it as a terminal... Read more
Published 22 months ago by Wilda Espinal

4.0 out of 5 stars Keyspan US-4A USB Server
Keyspan US-4A 4-Port USB Server (12 Mbps)

Since new software/firmware update, this product works almost flawlessly. Read more
Published on November 9, 2007 by D. King

2.0 out of 5 stars Not Working with Canon Multifunction (MF Series), Causes BSOD
You have to disable ALL firewalls (both Windows or any 3rd party firewalls) to be able to install the server correctly. Read more
Published on August 9, 2007 by Re2st

4.0 out of 5 stars Worked good after a minor gotcha
Be sure to read the instructions well before setting up. (I didn't.) Especially if you run a DHCP server on your network, default settings cause the unit to sometimes assign... Read more
Published on August 8, 2007 by Paul C

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