# Firewire interface + ac adapter :( **URL:** \ **Category:** General Discussion\ **Created:** [February 6, 2009, 1:45pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388 "2009-02-06T13:45:52Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![alien2k](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/alien2k/32/13639_2.png) [@alien2k](https://forum.djtechtools.com/u/alien2k)\ **Post date:** [February 6, 2009, 1:45pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/1 "2009-02-06T13:45:52Z")
**Firewire interface + ac adapter 😞** Guys I have a M-audio audiophile which has a firewire connection. I have 2 firewire cables that came with it. One ending with 6 pins which I use to connect it to my desktop, and with that cable I don´t need to use the AC adapter it is bus powered. But when going mobile I need to use the cable ending in 4 pins for my laptop and I need to use a huge AC adapter. My question is that if I buy this cheap 6Pin (Female) to 4Pin (Male) adapter , am I going to be able to get rid of the ac adapter and get bus power from my laptop? My guess is that no, but has anyone has tryed this? I am looking at this kind of adapter ![](https://us1.discourse-cdn.com/flex001/uploads/techtools/original/3X/b/9/b9e4ed8347d8939fae1f388f5aa06f7a3988f220.jpeg) ---
**Author:** ![BentoSan](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/bentosan/32/15028_2.png) [@BentoSan](https://forum.djtechtools.com/u/BentoSan)\ **Post date:** [February 6, 2009, 1:49pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/2 "2009-02-06T13:49:38Z")
i tried something similar like that but the 4pin would keep on falling out. So i installed a firewire express card - ![](https://us1.discourse-cdn.com/flex001/uploads/techtools/original/3X/4/b/4b592e1266b117ee18ac41c234e8c567261f9bc8.jpeg) If you plan to buy one of these things make sure its got a “Texax instruments” chipset in it as these seem to be the most reliable for audio purposes. Also you will still need an AC adapter with either of these appraoches. ---
**Author:** ![alien2k](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/alien2k/32/13639_2.png) [@alien2k](https://forum.djtechtools.com/u/alien2k)\ **Post date:** [February 6, 2009, 1:55pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/3 "2009-02-06T13:55:02Z")
Thanks Bento for your fast reply. So let me ask you this other way… is there any way of getting rid of this ac adapter? ---
**Author:** ![BentoSan](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/bentosan/32/15028_2.png) [@BentoSan](https://forum.djtechtools.com/u/BentoSan)\ **Post date:** [February 6, 2009, 2:10pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/4 "2009-02-06T14:10:36Z")
Well i have been thinking a battery pack mod must be possible - if you were using one of those express cards it would just be a matter of supplying the right ammount of power into the interface or into the power slot on the expresscard itself. ---
**Author:** ![alien2k](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/alien2k/32/13639_2.png) [@alien2k](https://forum.djtechtools.com/u/alien2k)\ **Post date:** [February 6, 2009, 2:21pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/5 "2009-02-06T14:21:42Z")
Yes that is some mayor work. But I don´t understand why I would not be able to get bus power using the express card you recommend. Considering that I have a pci firewire card installed on my desktop from which I do get bus power, and dont need the ac adapter. Is it the laptop that don´t have enough power? Thanks! ---
**Author:** ![DvlsAdvct](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/dvlsadvct/32/15020_2.png) [@DvlsAdvct](https://forum.djtechtools.com/u/DvlsAdvct)\ **Post date:** [February 6, 2009, 3:01pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/6 "2009-02-06T15:01:37Z")
The 4-pin firewire ports and the Expresscard slots don’t transmit power. This was a big complaint about Final Scratch Live. ---
**Author:** ![charo](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/charo/32/13488_2.png) [@charo](https://forum.djtechtools.com/u/charo)\ **Post date:** [February 6, 2009, 3:06pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/7 "2009-02-06T15:06:35Z")
yup that’s what those other 2 cords on the 6-pin cable do. just getting that adapter won’t work. ---
**Author:** ![alien2k](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/alien2k/32/13639_2.png) [@alien2k](https://forum.djtechtools.com/u/alien2k)\ **Post date:** [February 6, 2009, 3:10pm UTC](https://forum.djtechtools.com/t/firewire-interface-ac-adapter/2388/8 "2009-02-06T15:10:35Z")
The worst thing is that my ac adapter is for 110V (American version) and here we use 220V, so I need to carry an extra voltage transformer plus the ac adapter. Very bad… I will put my efforts in finding a similar ac adapter for 220V , I think is my only option now