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CyberPower Mobile Battery Powered 4-Port USB Hub (CP-H420MP)

3.0 out of 5 stars 13 customer reviews

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  • USB 2.0 data transfer up to 480 Mbps
  • Easy Plug and Play installation
  • Works with all USB 2.0 and USB 1.1 Devices
  • Built in batteries power for USB devices
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Product Description

Product Description

MODEL- CP-H420MP VENDOR- CYBERPOWER SYSTEMS FEATURES- USB 2.0 4-port Mini Hub The latest product innovation from CyberPower Systems provides you with the ability to easily connect and power up to four USB devices without an ac power adapter. The Mobile Battery Powered USB 2.0 4-port hub features rechargable batteries to power the hub. Includes USB hub 18" USB extension cable (4) AAA batteries User manual.* USB 2.0 data transfer up to 480 Mbps * Easy Plug and Play installation * Works with all USB 2.0 and USB 1.1 Devices * Built-in battery power for USB device SPECIFICATION CONNECTORS - (1) USB 2.0 Upstream connector (4) USB 2.0 Downstream portsINDICATORS - LEDs for Power Battery activityREQUIRES Windows 98SE ME 2000 or XP Mac OS 8.6 and above POWER (4) rechargeable AAA batteries (included)

From the Manufacturer

The latest product innovation from CyberPower Systems provides you with the ability to easily connect and power up to four USB devices without an ac power adapter. The new Mobile Battery Powered USB 2.0 4-port hub features rechargable batteries to power the hub.

Product Information

Product Dimensions 0.7 x 2.8 x 4 inches
Item Weight 1.6 ounces
Shipping Weight 7.2 ounces
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
ASIN B0002UQALQ
Item model number CP-H420MP
Customer Reviews
3.0 out of 5 stars 13 customer reviews

3.0 out of 5 stars
Best Sellers Rank #2,398 in Electronics > Computers & Accessories > Networking Products > Hubs
Date first available at Amazon.com October 2, 2001

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

First off, I have to admit that I actually like this product a lot - it does work, and it is very convenient to own and use. However, there is no doubt some serious problems that need to be cleared up. This is NOT a portable "stand-a-lone" battery powered USB Hub.

It is a USB Hub with rechargeable batteries that you may "switch on" if your device draws too much current from the hub to operate properly. It will NOT re-charge or power your iPod independently without being plugged into your computer's USB port. That would be "way cool," but it is NOT happening with this product. Some of the confusion is on the part of the manufacturer. Unlabeled switches are NOT helpful and the instructions included could be more clear. To clarify:

If the hub is plugged into the computer there should be a blue indicator lit. In regards to the tiny switch on the side which controls when the batteries are in use, up is ON, and down is OFF in relationship to the unit. If the labels read right side up (front or back) then when the switch is up it is ON and the batteries will NOT recharge as they are being used to supply current to the hub.

If the switch is up, (ON) the red light is lit and the red light means the batteries are in use and are NOT charging. Until you switch the batteries OFF they will not re-charge. (If you remove the batteries the red light stays lit without the batteries because the charging voltage is still at the battery terminals and at the light. I believe this is a design flaw, but maybe it was intentional as a reminder that the batteries are not recharging. Note "First Time Use" instructions for charging the batteries.

Although the instructions are poor with a lack of proper labeling on the unit, the product itself is actually innovative, and a good addition to a notebook computer bag.

For the product manual see: [...]
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The reason I bought this product is so that I could power up USB devices and the hub with the included batteries. Unfortunately, the hub will not power any devices I tried nor operate as a hub without drawing power from a laptop or PC. The manual states that the red LED will extinguish when the batteries have discharged. However, even when I removed the batteries, the red LED remained on. Basically, there does not seem to be any way to determine if the batteries are doing anything. I am still looking for a true battery powered hub.
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I don't recommend this unit for the following reasons:
1) The precision of the case is quite poor. I was almost unable to open the battery cover. I finally used my Swiss Knife to modify the battery cover to resolve the problem.
2) The battery indicator is only passive (switch on/off indicator only) and cannot tell you if the batteries are in use or not. Even without the batteries, the indicator can be still on. I cannot confidently say that this device does not draw power from my vulnerable VAIO UX280.
3) When using the Sennheiser USB adaptor on this device, the audio quality was significantly degraded. I assume that this device cannot keep data flow fast enough.
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As another reviewer reported, this hub does what it's supposed to do. It's *not* made to charge or power devices per se. It is meant to provide extra power to USB devices that would otherwise need an external power supply. Devices such as external cd/dvd writers, external hard drives, etc... often require addtional power. Usually that comes in the form of a y-adapter, taking up two USB slots (one for data, the other dedicated to power) or an external power supply. The purpose of this USB hub is to provide additional power to the device, on the road, so you don't have to (or probably can't) plug in the external device's AC adapter. The batteries, once charged, can provide additional power to a USB device for 1-2 hours, depending on draw and use. An occasional read/write from an external hard drive is a considerably different load than watching a movie, playing from an external DVD drive. And with the rise of netbooks, many netbooks rely on external drives so the situation is not all that uncommon.

Now, the build quality does seem somewhat cheap. I, like others, had difficulty putting the battery cover back on after inserting the batteries into the battery compartment. I'm using it on Vista, and Vista reports the hub and anything plugged into it as an unknown USB device. But the devices show up and work as they should, so have no idea what's causing the error. A quick search of the manufacturer's website doesn't list the product at all, and it appears everything about the product has been removed. The pages exist in Google Cache, not on the website itself. So don't expect a lot, if any, support.

In sum, it's an average product because of build quality and the possible lack of support from the company, assuming the hub is a discontinued product (note: it's not even listed in the discontinued products page for the manufacturer). But it does what it is supposed to do, as long as you understand what it is meant to do.
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This unit does what it purports to do. It provides a 4 USB port hub with some ability to power outside devices via its on-board battery pack. Quibbles: my m-audio Oxygen-49 keyboard draws too much power for the built in hub in the iMac Keyboard, and though it can be powered by the CP-H420MP, it draws down the batteries quickly, within an hour or two. I ended up attaching an AC adapter to the keyboard. There is an unlabelled switch on the CP-H420MP for powered or unpowered operation. What would it take for them to put a label on the switch? The unit comes with a card that you can use to buy an inexpensive AC adapter for this USB hub. I threw it away when I opened the package. I shouldn't have. None of my generic AC adapters work with it.
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