rj45

An easy one for someone. I have CCTV installed at home that I can view on my phone. From my router I have a cat6 to my TV for Netflix and youtube and use the wifi for connecting my laptop and phone to the internet. Is it possible to use a simple splitter to take another cat6 to my CCTV...

Got the opportunity to re-cable from Cat 5 (will be behind insulated cladding so shouldn't need exterior grade I guess) Cat 6 or Cat 6E? Nothing fancy going on, just want to transfer data at Gigabit speeds. Crimp tool I have is standard RJ45 and got lots of standard RJ45 plugs, so ideally still...

Network cable with 90 degree RJ45 connector. Does this type of cable exist? Most moulded RJ45 connectors just stick straight out, so when bending them by 90 degrees, because of the moulding, it can not be done so sharply. I need mine to be very flexible or moulded already with a 90 degree...

I have a wired modem into my PC. When I work from home I swap the cable from the PC into the modem to the cable that runs from my laptop. Is there some splitter device that allows me to plug both in at the same time so I could use both PC Internet and laptop VPN at the same time ?

So I was looking for a usb cable to connect my camera to my pc to upload a picture of the clouds.... and I find this in the box Any clue what its for? I can't find mention of it in the camera manual (Pentax K100d), and connecting it to my camera and router just brings up a (non-accesible)...