choosing an external DVD burner
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From: Daave on 13 Dec 2009 13:06 Jo-Anne wrote: > "Daave" <daave(a)example.com> wrote in message > news:eRrFjiAfKHA.3792(a)TK2MSFTNGP02.phx.gbl... >> Jo-Anne wrote: >>> <snip> >>>>>>>> There are a lot of external burners that plug into the >>>>>>>> electrical outlet. That to me is better than using the usb >>>>>>>> port for power. Try this link. >>>>>>>> http://www.newegg.com/Product/Product.aspx?Item=N82E16827151194 >>>>> >>>>> >>>>> Thank you again! I looked at this burner at Newegg, and I'm >>>>> confused. If this is a burner that plugs into an electrical >>>>> outlet, how do you know that? I couldn't see anything in the >>>>> specs about a power supply... Jo-Anne >>>> >>>> Look at this picture of it. >>>> >>>> http://www.newegg.com/Product/ImageGallery.aspx?CurImage=27-151-194-Z06&SpinSet=27-151-194-RS&ISList=27-151-194-Z01%2c27-151-194-Z02%2c27-151-194-Z03%2c27-151-194-Z04%2c27-151-194-Z05%2c27-151-194-Z06&S7ImageFlag=1&Item=N82E16827151194&Depa=0&WaterMark=1&Description=SAMSUNG%20USB%202.0%20Black%20External%2022X%20DVD%20Burner%20Model%20SE-S224Q >>>> >>> Thank you, Bob! Now I see it. But shouldn't that be something they'd >>> mention in the specs? >> >> Although I have seen external hard drive enclosures that don't need >> AC juice (then again, I'm pretty sure they still all have that >> option), I would imagine that there is no such thing as an external >> DVD burner that wouldn't require an AC connection. >> > Hi, Daave, > I've been told that many (most?) of the external DVD burners get > their power from two USB ports rather than from an AC connection. > Some people have said that theirs work OK with only one USB port. I find that surprising!
From: Paul on 13 Dec 2009 17:54
Daave wrote: > Jo-Anne wrote: >> "Daave" <daave(a)example.com> wrote in message >> news:eRrFjiAfKHA.3792(a)TK2MSFTNGP02.phx.gbl... >>> Jo-Anne wrote: >>>> <snip> >>>>>>>>> There are a lot of external burners that plug into the >>>>>>>>> electrical outlet. That to me is better than using the usb >>>>>>>>> port for power. Try this link. >>>>>>>>> http://www.newegg.com/Product/Product.aspx?Item=N82E16827151194 >>>>>> >>>>>> Thank you again! I looked at this burner at Newegg, and I'm >>>>>> confused. If this is a burner that plugs into an electrical >>>>>> outlet, how do you know that? I couldn't see anything in the >>>>>> specs about a power supply... Jo-Anne >>>>> Look at this picture of it. >>>>> >>>>> http://www.newegg.com/Product/ImageGallery.aspx?CurImage=27-151-194-Z06 >>>>> >>>> Thank you, Bob! Now I see it. But shouldn't that be something they'd >>>> mention in the specs? >>> Although I have seen external hard drive enclosures that don't need >>> AC juice (then again, I'm pretty sure they still all have that >>> option), I would imagine that there is no such thing as an external >>> DVD burner that wouldn't require an AC connection. >>> >> Hi, Daave, >> I've been told that many (most?) of the external DVD burners get >> their power from two USB ports rather than from an AC connection. >> Some people have said that theirs work OK with only one USB port. > > I find that surprising! > I think the slim drives run on 5V. The claim here is that it is bus powered. http://www.samsung.com/sg/consumer/pc-peripherals-printer/optical-disc-drive/dvd-rw-drive/SE-S084B/RSBN/index.idx?pagetype=prd_detail The picture on Newegg for that drive, shows it has a "Y" cable for USB. And that allows 5V at up to 1A to flow. One USB connector is just for the power pins, the second is a full connector with data pins. Being miserly on power, means a longer spinup. http://images17.newegg.com/is/image/newegg/27-151-186-S04?$S640W$ ******* The desktop versions run on 5V and 12V, and draw more current from each. They're a different design. The desktop version definitely needs a power brick. I've measured mine and it draws 12V @ 1A when running with media in the tray. The label on my desktop drive says it draws 1.5A max. And things like desktop Blu-ray drives draw even more current. Although those numbers seem to be dropping on the latest ones. They're getting closer to the other CD/DVD drives. I think I've seen one earlier than this, that draws 2.5A max. http://www.bettercomputers.com.au/sony-bwu100a-dl-blu-ray-dvd-burner~p-517.html Power Consumption 5V @ 1.1A, 12V @ 2.2A max HTH, Paul |