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geekhack Community => Keyboards => Topic started by: pex on Sun, 21 June 2009, 01:32:08

Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: pex on Sun, 21 June 2009, 01:32:08
Newegg has KR-6170-BK on sale for 9.99+ship.  Knowing that i-rocks is in the NKRO business, has anyone tested this keyboard?

No mentions of rollover in any of the 61 reviews:
http://www.newegg.com/Product/Product.aspx?Item=N82E16823204011
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: skyian on Sun, 21 June 2009, 02:17:17
I search i-rocks official site and Taiwan Auction sites. There's no description about NKRO function on this keyboard. Since NKRO is quite a selling point of keyboard, I think this KR-6170 doesn't have NKRO function.

Hope that could help you a bit... ^_^


BTW, as far as I know. Razer Tarantula is the only selling "USB" keyboard which could "Ten"-key-rollover without any driver. I tried that about half a year ago. ^_^
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: pex on Sun, 21 June 2009, 12:45:24
I doubt they'd be advertising a $20 keyboard with NKRO... I just had an idea maybe it was one of those things that gets implemented because it's easier to keep one's manufacturing lines the way they are but not officially offer the feature.  

I was just looking to see if anyone had it available for user testing.  I have no reason to believe it would have such a feature.
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: pmyshkin on Sun, 21 June 2009, 13:08:54
All I can say about that poster is wow.
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: alpslover on Sun, 21 June 2009, 17:35:14
i'm surprised nobody here's mentioned the 6230, which has cherry browns, a compact layout, status leds embedded in the keys, n-key rollover (but then they say up to 16 simultaneous keypresses which is technically 16-key rollover, not n-key), an integral usb hub, all for under $100.
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: cchan on Sun, 21 June 2009, 20:27:08
Quote from: alpslover;98224
i'm surprised nobody here's mentioned the 6230, which has cherry browns, a compact layout, status leds embedded in the keys, n-key rollover (but then they say up to 16 simultaneous keypresses which is technically 16-key rollover, not n-key), an integral usb hub, all for under $100.
Your answer is in the right shift area. They moved the / key to the right of right shift.
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: skyian on Sun, 21 June 2009, 22:18:32
Quote from: alpslover;98224
i'm surprised nobody here's mentioned the 6230, which has cherry browns, a compact layout, status leds embedded in the keys, n-key rollover (but then they say up to 16 simultaneous keypresses which is technically 16-key rollover, not n-key), an integral usb hub, all for under $100.



As for i-rock KR-6230, my friend iqmore and spyguy actually tested that keyboards in Taiwan in March, 2009. They found i-rock KR-6230 is not truly 16 key rollover.

Factually it's like...

Step one:

if you press the following keys in a roll...(and don't release them while press another key)

A S D F G H
Hence now you are pressing six keys at the same time...

Step2:
Now you tried to press another key like "T"


Step3:
Then you will find out the first key "A" you press is not showing anymore.
Now the computer's receiving singal is
"S D F G H T"



In conclusion, this i-rock KR-6230 still can only six key rollover (under the limit of USB fuction). Besides the right shift is moved aside for the "/" key.

(They said that design is for country like Japan or Koren. I am not quite sure about that.. = =" )

Hope that helps you.. ^_^
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: alpslover on Mon, 22 June 2009, 08:02:26
Quote from: skyian;98255
As for i-rock KR-6230, my friend iqmore and spyguy actually tested that keyboards in Taiwan in March, 2009. They found i-rock KR-6230 is not truly 16 key rollover.

Factually it's like...

Step one:

if you press the following keys in a roll...(and don't release them while press another key)

A S D F G H
Hence now you are pressing six keys at the same time...

Step2:
Now you tried to press another key like "T"

Step3:
Then you will find out the first key "A" you press is not showing anymore.
Now the computer's receiving singal is
"S D F G H T"

In conclusion, this i-rock KR-6230 still can only six key rollover (under the limit of USB fuction).


what if you were to press more than 6 keys simultaneously while, for example, typing a document, rather than a rollover test?  would all of the depressed keys register?

this sounds like the das keyboard's 12-key rollover behavior.  testing it using one of those rollover tests shows a 6 key limit, but it will register up to 12 simultaneously depressed keys while typing a document.  i suspect that in a game, only 6 keys would register.


Quote
Besides the right shift is moved aside for the "/" key.


it looks like they moved the / key around in favor of keeping the inverted-t arrow key cluster without sacrificing the size of the right shift.  if they had chosen to keep the / key in its customary location and still have a decent sized shift key, they would have had to move the up arrow key to the right.
Title: Knowing i-rocks is in the NKRO business, has anyone tested a KR-6170?
Post by: skyian on Mon, 22 June 2009, 13:44:41
We rarely use another way to do an NKRO test in Taiwan. Afterall only the program could truly find out how many signals are registering right now...(sigh)

We tried to press more than six keys at the same time. But it ends up still only six keys are registering.

Hope that helps a bit... ^_^