Hi.
Is there any difference between breadboards at all? I need 15 of em and the cheapest one that i found in my local store are this.
Is it the same that i received with my starter kit? (i googled and found out that there is no difference at all, but i want to be sure)
Thanks
So you post a picture and expect us to know what you received with your starter kit?
It is what it is. It may be durable, it may be dodgy. There is no way for us to know without it being in our own hands - and then needing to try it out. Branding may - perhaps - be relevant
What we now want to know is why you want fifteen of them? 
And not sixteen.
Buy units that have ‘two’ power rails on top and on bottom.
Buying the the cheapest sometimes means you get the cheapest. 
Is it the same that i received with my starter kit?
How should we know which of the hundreds of starter kits that you have?
I bought a couple breadboards form YourDuino.com that are satisfactory and not expensive.
Note that the power rails are broken in the center so one must jumper the gap in the black squares to get power all the way across.
The type in the original post look like what Radio Shack used to carry, and were not very good.
The kind with the separate pieces (used for power/Gnd usually) that connect together with tabs are much better.
You can find them here, there are some on backplates with other terminals as well. The large one, 3250 points, is basically 4 of the single board, on backing plate, for less than 4x the cost of the single
http://www.dipmicro.com/store/index.php?searchStr=breadboard&act=viewCat&Submit=Search
If you're going to try and populate 15 of those as one project and keep it all running, good luck! Secure them all in one place, document where all the parts are located with drawings, keep schematics up to date. I have used ExpressPCB/ExpressSCH for doing that on wirewrap projects. Trying to keep a big project with all jumper wires can become a nightmare.
If you're making 15 of something, get one working and then move on to PCBs for the rest.
If you're running some kind of club or camp, that's about the only thing that makes sense to have 15 breadboards.
“If you're running some kind of club or camp, that's about the only thing that makes sense to have 15 breadboards.”
Hope this is the correct assumption.
Got my answers.
I am giving a lesson, where each students will receive 1 breadboard, a couple of diodes, button and jump wires and then they will have to recreate a scheme which i will give them, thats why i am looking for them.
Thanks everyone.
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I'd recommend 6 contacts per row, not just 5, it makes quite a difference to usability, especially
if using any 0.6" wide ICs or modules.
My favorite are the "Advanced Solderless" breadboards like AD-11, AD-12, AD-13 etc, which
seem to be high quality, durable, etc.
Most cheap breadboards have issues, like jamming easily, losing tension in the connections,
lack of contoured holes to guide wires to the contacts.
MarkT:
Most cheap breadboards have issues, like jamming easily, losing tension in the connections,
lack of contoured holes to guide wires to the contacts.
Problems which are particularly troublesome when using them as a teaching tool - when the students cant trust the connections, it makes it much harder for them to learn, especially for the ones who are having trouble with the concepts (same effect as the math teacher who slips up when doing problems on the board - the strong students follow along, notice the error as he makes it and correct for it, while the weaker ones get lost)
Also, all those problems geg much worse if you are reusing the boards a lot, esp if things that barely fit are getting stuck into the holes.
I despise breadboard, in general, and never use it, and give my friends who do crap for it - when they show me something they made on breadboard, i usually get at least five minutes to make fun of them while they look for loose connections trying to make ig work.
Those 6-hole breadboards don't seem common in the US.
K&H breadboards, I'm not seeing a US source.
There definitely is a difference, and a bad breadboard is just constant frustration. Here's a possible source of good breadboards at the right price. But I would sure order one tto check out before springing for 14 more.
And here's another take on breadboards:
