RJ11 6P4C 4-Pin Telephone Connector (100-Pack)

Pros: Cheap
Zero rejection rate
Cheap
Solidly built
Cheap
Did I mention they're cheap ?

Cons: None that I've found to date

Other: At this price they're excellent value, here in Ireland Maplin (rip-off artists that they are) will charge around €0.95 per connector IIRC
DX's price is a far more realistic proposition

Pros: 100% working pieces
Equivalent quality to those locally sourced.
A fraction of the price of any local suppliers.

Cons: Zero cons on the product itself.
Sometimes can be difficult to convince your boss to purchase supplies online.
Must be purchased with some forethought. If you need some tomorrow, pick them up locally; if you need some next month, order them now.

Other: You will spend a fraction of what these cost at any local supplier, so here's what you do:
Order extra, so that when you're down to a month's supply left, you can make another order so you don't run out. Don't wait until you need some right away, because you'll pay way more for the exact same product (where do you think your supplier gets it from?)

Pros: They come, well-protected, in a bubblewrap bag. The build quality is consistent, I haven't found a bad connector so far and they all look the same. This is very good. For 100 connectors I would pay $60 in a local store, so they are also very cheap! They work for both RJ14 and RJ11 cables/phones.

Cons: Can't think of much. Nothing really. Nope. I'm trying, but I can't think of any con. At all. I just don't know. They are perfect.

Other: If you are ever planning on crimping cables for your phone or modem, you definitely want to get these!

Pros: Great RJ-11 connectors. I thought this would be very bad quality (due to the price, normally it's around $ 15,- for 100 pcs) but these are the same quality.
If you compare them to normal RJ-11 connectors they are exactly the same (same as the plastic molding edges!!).
The plastic clips (to unlock the collector) are really well made. I havent broken a single clip until now (and thats very rare).

Cons: None so far, just great stuff!

Other: Just a fraction of the normal price, and still the same quality.

Pros: Cheap, yet very fine 6P4C RJ14 connctors for crimping when cabling telephone-type installations, e.g. phone, DSL, and even some chargers.
Fits nicely in sockets (female connector), making good contact.

Cons: Not really

Other: Buy these if you need 6P4C connectors for making or repairing stranded wire cables. If you can wait for delivery, of course:)