Skip to: |

Newegg.com - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message.

Newegg.com - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Sign up today for a 30-day free trial of Newegg Premier
  • Shipping Destination: United States
  • Wish List
  • Feedback
  • Help
Search all
Search
Home
Home > 
Computer Hardware > 
Input Devices > 
KVM Switches > 
TRENDnet > 
Item#: N82E16817403066

TRENDnet TK-423K 4-Port USB PS/2 Audio KVM Switch Kit

  • 4 Ports Computer Connections
  • 1 Port Monitor Connections
  • Video Resolution 2048 x 1536
IronEgg
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
  • Pin It
  • Email this page
ICON Loading...

Learn more about the TRENDnet TK-423K

Model

Brand
TRENDnet
Model
TK-423K

Spec

Type
D-Sub, USB, PS/2
PC Connectors
4 x USB type B
4 x VGA HDB 15-pin female
4 x 3.5mm audio in/out jack
4 x 3.5mm microphone in/out jack
Console Connectors
2 x USB 1.1 type A for keyboard/ mouse
1 x PS/2 keyboard 6-pin mini DIN female
1 x PS/2 mouse 6 pin mini DIN female
1 x VGA HDB 15 pin female
1 x 3.5mm audio in/out jack
1 x 3.5mm microphone in/out jack
Computer Connections
4 Ports
Monitor Connections
1 Port
Video Resolution
2048 x 1536
PC Selection
Push Buttons/Hot Keys
Temperature
0ºC to 40ºC(32ºF to 104ºF)
Humidity
0% to 90%,Non-Condensing
Weight
35.2 oz.

Features

Power Features
9V DC 1A external power adapter
USB Features
with USB support
Features
Manage up to 4 computers/servers with one set of console devices
All required cabling included
Cables from the KVM switch to the computers/servers feature VGA and PS/2 connectors
Supported console connections are as follows: PS/2 or USB keyboard and mouse ports, VGA monitor port and
speaker/mic port
Audio and microphone support
Audio/mic port selection may be independent of keyboard, video and mouse port selection
Control computer/server selection with front push buttons and keyboard hotkeys
Supports Universal Host and Open Host Controller Interface (UHCI/OHCI)
Multiple platforms supported: Windows 98, XP, Vista, Mac, Linux and more
Port switching confirmed by LED status indicators and audio tone
High quality VGA resolution up to 2048 x 1536

Manufacturer Warranty

Parts
2 years limited
Labor
2 years limited

Quick Info

Warranty

  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years


Customer Reviews of the TRENDnet TK-423K

Do you own this product? Write a Review

ICON Loading...

Filter Results

Go
  • John S.
  • 4/2/2013 7:21:09 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent switch

Pros: Switches between three small servers. No problems, works great.

Cons: None

Did you find this review helpful? Yes No

  • David K.
  • 5/16/2012 5:41:25 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsJunk No USB no matter what...

Pros: Made out of metal.

Cons: Everything else. USB cables to short. Need to buy a extension cable to get this to work. USB never worked on any of the 4 ports. No mouse, no keyboard, no nothing.

Other Thoughts: I have two of Trendnets server 8 port units that work with out issue and this piece of junk can't even support a single USB mouse or keyboard.

Manufacturer Response:

Valued Customer,

We are sorry for any inconvenience this may have caused you. We believe your product is still under warranty and qualifies for a full replacement. We would like to assist you with your current situation and get your product up and running as soon as possible. Please contact us at sales@trendnet.com, reference "New Egg product review" and someone will contact you immediately. We look forward to working with you directly and restoring your faith in TRENDnet products.

Warmest regards,

TRENDnet Sales Team

Did you find this review helpful? Yes No

  • Rickey T.
  • 4/28/2012 3:48:42 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsPerfect. Just What I Was Looking For

Pros: I tried the Linkskey kvm and could not get it to recognize my monitor. This one picked it up with no problems. Using Usb for keyboard & mouse. No problems at all.

Cons: Cables are a little short. That is the only con I can think of.

Other Thoughts: I am hooking up to two Windows 7 computers and had no problem picking up my devices.

Did you find this review helpful? Yes No

  • Kyle C.
  • 2/27/2012 6:28:12 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggs

Pros: Very solid construction, snug cable fit, works most of the time.

Cons: I initially set this up with an older PS2 keyboard that I love and want to use until it dies. Everything seemed to work well, but then when playing a FPS game I found that it misses a lot of key presses. This means when you try to move your avatar, sometimes you'll just stand there and take a rocket to the face. Not cool. (there goes an egg). So I'm now using a USB keyboard, but about 1 in 4 reboots of the PC the keyboard is non-functional, requiring a hot-plug of its USB connection to the switch. Also not very cool. (another egg)

Other Thoughts: I really wanted to like this box, since it's nice and heavy and looks like it means business, but it just doesn't deliver all the goods. The two short cables everyone has mentioned are also fairly useless for a typical setup.

Manufacturer Response:

Valued Customer,

We are sorry for any inconvenience this may have caused you. To ensure it’s an hardware issue, please use provided short cables for direct connection without any third party cables, docking station or interface converter. If it still doesn’t help please contact us at sales@trendnet.com, reference "New Egg product review" and people will contact you immediately for replacement. We look forward to working with you directly to restore your faith in TRENDnet products.

Warmest regards,

TRENDnet Sales Team

Did you find this review helpful? Yes No

  • Urias M.
  • 11/7/2011 8:56:44 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsWorks well, but not without a couple flaws

Pros: Sturdy build
PS2 + USB support
Double-scrolllock hotkey (as opposed to crazy combinations that my old one used)
Separate button for each device on the unit rather than a single "next device" button.

Device worked out of the box with my aging PS2 keyboard and two different USB mice attached to it at the same time (trackball and mouse, I swap between them often) - it automatically emulates USB keyboard support (no need to connect the PS2 cable to each computer).

Cons: Two of the cables are annoyingly short - I was able to make it work, but most of my machines aren't all that close.

After one month of use, one of the ports stopped working properly with USB (PS2 worked) - I tried a power cycle, swapping cables, swapping computers, but that wasn't enough. After 30 minutes on the phone with tech support who was hard to understand, we found that completely removing EVERY CABLE and then hooking them back up was the only solution to fix this.

For that, it loses an egg - and at least I didn't have to send it back.

Other Thoughts: Compared to my previous PS2-only KVM by another "gear" company , this is a pretty nice unit.

I haven't actually tried the sound, since I only use one of my computers for sound playback anyway. However, I may plug my USB headset into it to see if that works.

I was hoping I could use both the PS2 connector (for keyboard) and the USB connector (for mouse), but my machines just seem to use the usb keyboard instead and ignore the PS2 one. This means none of the hotkeys on my keyboard work via the USB emulation.

PS2 converter for the mouse causes scroll-wheel issues in Windows (triggers random back-button on browser) - I've always had that problem, and it's not specific to the KVM switch.

I sure hope the ports don't flake on me too often - that could get pretty tiresome.

Ultimately, this works for my needs - DVI support would have been nice, but not required.

Did you find this review helpful? Yes No

  • Dale P.
  • 10/11/2011 11:06:57 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsDoes the job and does it pretty well.

Pros: So far does exactly what I need it to do, and does it quite well. Seems like a very good quality, well built unit. Like the two sets of "shorter" and two sets of "longer" monitor/KB/M cables. Like the option of USB or PS2 connection for the KB/M for the master as well as PC connections. Monitor cables are VGA on both ends, but am getting (but haven't tested yet) some VGA-to-DVI connectors so can (hopefully) use with PC's that don't have VGA video connectors but only have DVI.

Cons: As is, would be a superb value at $99.99. For $129.99, would be a superb value if also came with 4+1 VGA-to-DVI adapters to accomodate DVI monitor & PC video hookups, as well as a USB on the back (to connect a master file HDD) and a USB on the front (to connect a flash drive). Also, a black case (instead of the funky blue) would be preferable. Had a little trouble with the master KB/M USB connection (reason for the -1 egg), but just switched to using the PS2 KB/M connection and have had zero problems with that. Haven't taken the time to unplug/replug everything and retry the master USB connections yet - may or may not 'fix" the USB thing, but just haven't take the time to do it, and not too worried about it.

Other Thoughts: Got this for a PC workbench set up. Also got a TrendNet 5 port gigabit ethernet switch with Cat6 cables. The ethernet switch is plugged into a Netgear 500mbps Powerline adapter to connect to the modem-router & the ISP. All together makes a very functional small workbench set up. Have had 4 PC's hooked up connected to the internet all at once while switching relatively often around amongst the 4 PC's and the KVM switch has performed very well.

1 out of 1 people found this review helpful. Did you? Yes No

  • Patrick P.
  • 9/22/2011 12:01:55 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsdoes what i needed

Pros: Using an ASUS GX800 gaming mouse (USB only). The KVM lets me use all the mouse buttons (including the BACK/FORWARD buttons) on my game machine using the ps2 connection, and on my XP laptop and my linux fileserver in firefox both with the usb connection.

Using an IBM PS2 keyboard from 1998. My game machine is setup in the bios to power up from a PS2 keyboard hotkey, and that works through the KVM.

All my computers are able to run the monitor at 1920x1080 through the kwm, and i can't tell the difference, no ghosting or anything (Asus VH242H).

The sound switching works fine.

I like that the cables are detachable, so I don't have to leave the unused 4th cable dangling from the back.

Every other KVM I tried I had to either give up my faithful old keyboard in favor of a usb keyboard, or I have to use a different mouse.

To summarize, everything I was hoping the KVM would do, it does.

Cons: It would have been nice to have the sound cable integrated into the main cables, but it's not that big of a deal.

A connection for a second monitor would have been nice, but for the money, this is pretty good.

DVI connection also would have been nice, but, again, for the money, the VGA connector seems to be working just fine.

Other Thoughts: I had tried to hook up my usb mouse with a usb-ps2 adapter into my old kvm (just like i had my old logitech mx518 mouse working) but it did not work at all, the asus mouse simply would not use the adapter, even without the kvm in the loop. I tried a USB KVM, and the new asus mouse worked with that, but then i could not use my IBM PS2 keyboard (the KB is rock solid, 12 years old, and im really hard on KBs, I don't want to give it up).

I hope the KVM holds up, cause I doubt I'll be able to get a good ps2 KVM for much longer. (If this is still working in a few months, I might buy another one just to have onhand to keep running my keyboard as long as possible.)

Did you find this review helpful? Yes No

  • Anonymous
  • 2/24/2011 12:14:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsIt works

Pros: -The ability to have 4 computers controlled by one monitor, mouse, and keyboard.

-Comes with all the needed cables.

Cons: -I find that older computers don't like being connected through the USB, so I use the USB to PS/2 adapter, and it works.
-Doesn't have support for DVI interface or a built-in LAN switch, but I knew this when I bought it.

Other Thoughts: I paid $40.00 after being on sale, then a $45 rebate. What a steal!

Did you find this review helpful? Yes No

  • Martin M.
  • 12/8/2010 4:37:46 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsA Mixed Bag

Pros: Well constructed metal case, with nice layout of all connections in the back. Selectable Hot key, and hot keys do work even with USB keyboards. (I've seen units in the past where hotkeys only worked with PS2, or else you had to load a specal utility to make it work in Windows) You can mix and match USB and PS2 keyboards and computers. Audio switching is a VERY nice feature (I think it should be standard on all KVMS!). the ability to leave the audio on one channel is very nice as well...

Cons: Because of the way this switch buffers it's inputs, none of my computers (running XP and Win7) are able to detect that they are hooked to a Logi Tech keyboard and mouse set. When using this KVM none of my special key assignments will work on the keyboard or mouse. (Drivers are up dated to the latest version, and as an alternative to my older Logi MX 3000 set, I tried a friend's newer Logi mouse with the new "Unified receiver" with the same results) For me this is a deal breaker since I rely on them heavily. Not sure if there is a way around this "feature" or not for Trendn3t due to the USB and PS/2 translation going on, but it is sorely dissapointing, especially since my 5 year old Zonen3t KVM handles this flawlessly. (It still works fine) I was just upgrading for the audio switching. But I would rather have the extra buttons and keys working however, so it is going back in my system.

Other Thoughts: Overall, a great little KVM. Just don't expect full functionality from fancy keyboards or mice. They won't be seen for what they are, and you will get standard abilities only. On a side note, there is a hotkey sequence for resetting the keyboard and mouse signals. I have found I need them to do this rather frequently as they tend to lock up unexpectedly when using the middle mouse button. Not a welcome "feature" either! So minus one egg for the lack of pass through and stability

Did you find this review helpful? Yes No

  • Zachary P.
  • 10/6/2010 2:52:00 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsgood kvm!!

Pros: Good kvm.. was able to setup my two main systems and the other two get used for computer repairs. My logitech gx15 gaming mouse wouldnt work with the usb on the back of the kvm but did with a ps2 converter. Irock usb keyboard worked with win7 system but not vista. Was weird but after swithing both to ps2 connectors, then just using the usb on the systems worked just fine. It could be a usb driver thing but I haven't had the time to troubleshoot it and it wasn't that big of a deal to me at the moment.

Cons: Two of the cables are a little short so it was just a bit of a stretch for my two main systems however the other two are longer and work well. My logitech gx15 gaming mouse wouldnt work with the usb on the back of the kvm but did with a ps2 converter. Irock usb keyboard worked with win7 system but not vista. Was weird but after swithing both to ps2, then just uisng usb on the systems worked just fine. Was able to change the default key to numblock instead of scroll lock,,turn off the beep and switch between 4 systems.

Other Thoughts: Install was pretty easy (other than moving a ton of cables behind a desk) and a much better experience than I had with an aten 4port kvm that sucked and didn't work. I just hope this one lasts as long as my linksys 2port kvm has. :)

1 out of 1 people found this review helpful. Did you? Yes No

Compare Offers from All Sellers

Seller Name & Rating Offer Details  
ICON Loading...

Send It As A Gift!

gift services details

More Buying Options

Are you an E-Blast Insider? Subscribe Newegg e-Blast
PayPal
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Home
Home > 
Computer Hardware > 
Input Devices > 
KVM Switches > 
TRENDnet > 
Item#: N82E16817403066
Shop by Region: United States | Canada | China
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
Policy & Agreement | Privacy Policy  © 2000-2014 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site. nassau