Usb Hub Power
A look at what is currently available on eBay
 10 PORT USB 2.0 HUB EXTERNAL W POWER ADAPTER US $13.99 
|
 Laptop 4 Port USB 2.0 Bus Powered Mini Cube Hub Green US $7.69
|
 New USB High Speed 4 Port Power On/Off Switch LED Hub for PC desktop C US $3.29
|
USB hub power question?
Can a 4-port non-powered (bus powered) USB hub supply the full 100mA to each downstream port at the same time?
Probably not. The USB hub will get it's power from the system connection and every other device connected to it if unpowered, will need to feed off of this same power source. You run the risk of overloading the connection much like plugging too many electrical devices into an electrical socket. There is potential for blowing the USB power. It all depends on how robust the primary power supply is.
Items recently purchased from this site
Epson TMU220D874 Tm-u220d-874 Edg Usb (no Dm No Hub) Power Supply, Epson C31C515A8740 Tm-u220d-874 Edg Usb (no Dm No Hub) Power Supply, USB Powered 5-Port Gigabit Network Switch / Hub / TAP, USB Powered 5-Port Gigabit Ethernet Switch / Hub / TAP, USB Powered 5-Port Gigabit Ethernet Switch Hub w/ SPAN, USB Powered 5-Port Gigabit Switch / Hub /Port Mirroring, Digi Hubport /7 DC - Hub - 7 x USB - desktop - DC power 301-1010-70, 7 Port Usb 2.0 Hub 2A Power Expansion Adapter For Ps3 Mp3 Keyboard Mouse Console, 10 Port Way USB 2.0 Hub Splitter Power Extension Cable For Laptop PC Desktop PS3, Hi-Speed 4 USB 2.0 Port Bus Powered Multi Function Hub Splitter for Xbox 360 PS3, High Speed USB 3 Port Hub Splitter All in 1 One Card Reader Writer Power Adapter, USB HI Speed Splitter PC Hub with UK Power 2A Adapter, 7 Port USB 2.0 HUB+External UK AC 2A Power Adapter PSU, USB 2.0 7 Ports Powered Hub AC Adapter WINDOWS XP VISTA, Hi-Quality 4 Port USB 2.0 Fast HUB Splitter PC Power Plug Cable Win 7 Linux Mac, Black 4 Port USB 2.0 Slim Compact Hub Splitter Bus Powered Cable XP Window 7 Way, 1.5M USB 2.0 to B Male Printer Data HUB Power charging Cable For PC Digital Cam, NEW DIGI 301-1010-30 HUBPORT USB HUB - 4 PORT - 10-26V DC POWERED, GWC HU2SA0 USB 2.0 PC MAC 10 Port Computer Hub w. Power Adapter Kit, GWC USB 2.0 Hi-Speed 10-Port Hub with 2.5 Amp External Power Supply HU2SA0, USB to 8CH RS485 hub for monitoring device CCTV power, Octopus USB High Speed 4 Port 2.0 Hub Powered, Nu USB 2.0 10 Port Hub W/ Power Adapter Personal Computers Laptop New Fast Shi, RAM Tough Powered 6 Port USB Hub with Shutdown Delay Carputer Car PC RAM Mount, DC-Powered 4-Port USB Hub CNX-P5USB 12v and 24v input, 4 port Hub USB 3.0 w/Power Adp 29056, 7 Ports USB 3.0 Hub Power Adapter Expansion Dock 5Gbps, New OEM GWC USB 2.0/1.1 Ten 10 Port USB Hub w Power Adapter in Retail Packaging, 1 Port Hub USB RJ45 Extender Sender Receiver Set 164FT 60M with Power Adapter, 29056 4 port Hub USB 3.0 w/Power Adp Cables To Go, ORICO H7928-U3 High Speed 5Gbps 7-Port USB 3.0 Hub + Cable + Power Adapter White, ORICO H7928-U3 High Speed 7-Port USB 3.0 Hub up to 5Gbps with Power Adapter, CABLES TO GO 29056 4 port Hub USB 3.0 w/Power Adp, Toothbrush and Cup Sanitizer / Sterilizer PC USB port power Hub Office use, TRENDnet TU3-H4 Powered 4-Port SuperSpeed USB 3.0 Hub, Cables To Go 4 port Hub USB 3.0 w/Power Adp MPN: 29056, Long USB Extension w/Powered Hub - 40ft - RR-USB2-EXT-40FT-WHT-HUBE, CABLES TO GO 29056 USB 3.0 4 PORT HUB W/ POWER ADAPTER, Port Mirroring & USB Powered 5-Port Ethernet Switch Hub, Cables To Go 29056 4 port Hub USB 3.0 w/Power Adp, USB 3.0 SuperSpeed 5Gbps 7-Port Hub with AC Power Adapter, Eton ARCPT300W Axis Self-Powered Safety Hub Radio USB Cell Phone Charger, MegaHub - 36 Port Powered USB 2.0 Hub, Mega Hub 36 Port Powered USB 2.0 Hub, HU3140 USB 3.0 4-Port Hub Self-Power Plug-And-Play Function, Entrega Individually switched 4-ports HUB-4U USB Hub Blueberry for iMac W/ Power, Orico USB 3.0 7 port Hub with USB 3.0 Cable and Power Adapter, BELKIN 7 Port Hi-Speed USB 2.0 Powered Hub for PC / MAC, Hi-Speed 10 Port 480MBps USB 2.0 HUB W/Power Adapter for Laptop PC +Cable US Sel, New Hi-Speed 10 Port 480MBps USB 2.0 HUB W/Power Adapter for Laptop PC USB Cabl , 10 Port 480MBps Hi-Speed USB 2.0 HUB W/Power Adapter, 5W Solar Charger For Laptop Portable Sun Power Technology Outdoors, Hi-Speed 10 Port 480MBps USB 2.0 HUB W/Power AC Adapter for Laptop PC +USB Cable, Spire SP-12P 12 Port USB Hub USB 2.0 with Power Adapter, MACALLY PORTABLE POWER STRIP WITH 4 PORT USB HUB & 10-WATT USB CHARGE PORT, 7-Port Powered USB 2.0 Hub ACH115USZ, TARGUS ACH115USZ-7-Port Powered USB 2.0 Hub - Kit, 7 Ports Hub Super Speed Power Adapter Windows 7 USB 3.0, New USB 3.0 7 Ports Hub Super Speed Power Adapter Win 7, Brand New Targus 7-Port Powered USB 2.0 Hub, USB 2.0 High Speed 13 Port Hub W/ 5V Power Supply Win7, 3x New 10 Port 480MBps Hi-Speed USB 2.0 HUB W/Power AC Adapter +, Tripplite 4PORT SUPERSPEED USB 3.0 HUB PERP 5GBPS BUS POWERED W/ POWER ADAPTER, 12 Port USB HUB, SPIRE SP-12P with Power Adapter Black, 12 Port USB HUB, SPIRE SP-12P with Power Adapter White, Lindy 4 Port USB 2.0 Smart Hub Pro w Power Supply 10.42999, Uspeed USB 3.0 7 port Hub with USB 3.0 Cable and Power Adapter, Povkrt Hub Hi-Speed USB 4 Port with Power Adapter, 10 Wholesale Lot Self Powered 4 Port USB 2.0 PC HUB NEW Desktop Laptop MAC , Lot of 8 USB 2.0 7 Port Hub With power adapter NET-702M, 7-Port USB 2.0 Powered Hub CP-H720P, Targus ACH115USZ 7-Port Powered Usb 2.0 Hub, White 4 Ports USB3.0 HUB 100~240V input HotSwap w/ Blue LED+5V/4A Power Adapter, BELKIN F4U016 4 PORT DESKTOP USB HUB W/ POWER SUPPLY, NEW CYBERPOWER CP-H720P USB 2.0 - 7 PORT POWERED HUB, ACH115USZ 7-Port Powered USB 2.0 Hub Targus, External Autonomous 7 Ports USB 2.0 Hub Expansion USB Dock w/ 4A Power Adapter, 90202 Lighthouse- USB Power Hub, Black 4 Ports USB3.0 HUB 100~240V input HotSwap w/ Blue LED+5V/4A Power Adapter, Y-3041 4Port USB3.0 HUB Concentrator Slot UFO Modelling 5 V2A Power Supply, 4-Port USB 3.0 SuperSpeed External Hub with Power Adapter, CablesOnline UH3-K04, TARGUS ACH115USZ 7-Port Powered USB 2.0 Hub, Targus - ACH115USZ 7-Port Powered USB 2.0 Hub, Belkin 4 Port USB 2.0 Swivel External Hub with Power Adapter For PC Mac F5U415, 13-Port HighSpeed USB 2.0 External Hub w/ Power Adapter, CablesOnline UH2-K13, 4-Port USB 3.0 SuperSpeed Hub w/Power Adapter, Manhattan 161220, i-rocks IR-4661 7 Port USB Hub Multi Outlet Power Strip Type, 4 Port Gigabit Network USB 2.0 Server Hub w/ Power Adap,
October 15th, 2008 in
Powered USB Hubs | tags: electronics, gadgets, hub, power, usb, usb hub power adapter, usb hub power exceeded, usb hub power supply, usb hub powered, usb hub powered or not, usb hub powered vs unpowered