Category Archives: USB

Prepare for Long Flights with Ugreen’s 25,000 mAh Power Bank



With the holiday season fast approaching and the pandemic over, international travel is back on the agenda once again. However, those long flights across the world’s oceans will inevitably have your phone, tablet, laptop or Nintendo Switch running low on power well before the wheels touch the tarmac once again. And if you have children on the journey with you, it’s going to be even worse. Daddy!!!!

To rescue you from parental distress, you might want to check out Ugreen’s 25,000 mAh power bank. This is about as big a battery as you can take on a plane (do check your specific airline’s requirements) and this power bank has enough juice to recharge multiple devices several times. Most smartphones have batteries around 4,500 mAh and the Nintendo Switch is 4,200 mAh so there’s capacity in the power bank for around five recharges of single device. That’s a long flight taken care of.

Even better though, is that it can charge up to three devices at once using one USB A and two USB C ports. The total power output can’t exceed 145 W but frankly, if you are only charging your family’s portable devices, this is unlikely to be an issue. However, it does mean that if you need to charge a laptop like a MacBook or Dell XPS 13, the Ugreen power bank will still cover your needs.

There’s a small LED display on the side showing the battery level. Depend on the port, the Ugreen power bank supports a variety of charging standards up to QC3.0 and PD3.0, which is handy if you have device which will only charge when supplied with the correct standard (I’m looking at you, Microsoft). The full spec details are here.

If you get off the plane with a flat battery, charging using a 65W PD charger will take about two hours. Obviously if you have a lower powered charger, it’s going to take longer.

The Ugreen power bank isn’t cheap – it will set you back US$149.99 / UK£139.99 on Amazon US and Amazon UK – but what price peace and quiet with the little’uns on your next holiday?


A Beast of a Battery Pack from Chargeasap



Battery packs are ten-a-penny on crowdfunding websites but this one from Chargeasap caught my eye. It’s a total beast of battery pack, packing in a beefy 20 000 mAh of charge and delivering power to four devices simultaneously at a total rate of up to 150 W.

The Australian team behind Flash are using advanced batteries developed by Tesla, which provide 20% higher energy densities, lower temperatures (50°C max) and four times the product life. For the battery geeks, Flash’s power bank is made of four 21700 Tesla Lithium Polymer Graphene Composite Battery Cells manufactured by Panasonic. The other advantage of these batteries is that Flash can be recharged from empty to full in an hour. At 20 000 mAh it’s not the largest pack on the market but it’s going to be plenty for most people.

Feature-wise, the Chargeasap Flash has a single USB C port which will deliver 100 W, two USB A ports and a wireless charging pad on the top. It’s not the first time there’s been a battery pack with wireless charging – I reviewed the Mugenizer N11 way back in 2013 – but it’s a great add-on and really expands the usefulness of Flash. And unlike most other chargers, Flash is going to support a wide range of charging protocols including Apple Fast Charge, Huawei Supercharge, Oppo Flash Charge, Vivo Flash Charge, 10W Wireless Fast Charge and Qualcomm Quick Charge 3.0. Phew!

Manufactured with aircraft grade aluminium with anodised finish in black or space grey, Flash is available on Indiegogo now. Prices are beginning at US$139/GB£107 with a 2 year warranty, and it’s selling like hot cakes. As of writing, it’s already achieved over 3000% of its goal in about 2 days, so there are only a few of the early bird prices left.

Deliveries are expected in from April onwards and Chargeasap has a track record of delivering with six previous campaigns.

(It’s hard not to write The Flash as the product name…)


Meet the Limitless Innovations Charge Hub X3 [Review]



Charging hubs seem to be a dime a dozen these days – ok, they cost a bit more than that, but you get the point. That being said there’s also some great innovation going on these days. There now hubs with multiple ports to allow to charge things from one outlet. 

Today we’re looking at the Charge Hub X3 from Limitless Innovations, which makes a large array of products, many of them for charging. 

This is a three-port version and the plug that attaches to the back and plugs into the wall is actually a Macbook plug, although the device doesn’t appear to support charging one. When plugged in it has a blue indicator light on the front. The charging is relatively fast as well. It does not supply the charging cables, you’ll have to use your own, but pretty much everyone has those or you wouldn’t be buying this product. You can plug is whatever you want – USB to micro USB, USB to USB-C or USB to lightning. 

The company points out that “Our Charge hub X3 3 Port USB Charger is compact and ready to charge virtually any 3 USB devices fast with 2.4amp max output per port!”. It comes in 10 different colors – Black, white. Red, blue, pink, purple, green, grey, orange and turquoise. 

It’s available now for $39.99 at Limitless Innovations. There are also 5 port and port hubs for a bit more. It would be very handy when traveling with one charger for everything. 


All microUSB cables are not the same



This is a salutary warning to all geeks out there….even with all the year’s of experience, it’s still possible to make a rookie mistake and forget that all microUSB cables are not the same.

Last week at work, I needed to present an Android tablet screen via a data projector. The tablet only had a microUSB port, so connecting up directly via HDMI or VGA was out of the question. I’d have to mirror the tablet screen to a PC and then show the PC screen on the projector. WiFi wasn’t available to the PC, so it needed to be a wired connection but fortunately I had a drawer full of USB A to microUSB cables. I connected the Samsung Tab S2 to my PC and got on the with the job.

The wisdom of the Internet suggest that AirDroid was the one to try, so I signed up for an account, downloaded the PC software and installed the app on the tablet. Could I get the tablet to mirror to the PC? Not a chance!

Back onto the Internet, I then discovered that the Samsung tablets have an app for this called Flow, which doesn’t need rooting or developer access. Brilliant. I chucked AirDroid out the window, downloaded the complementary PC software….only to find that it’s for Windows 10, not Windows 7. This isn’t going well.

A bit more research and I further find that Flow’s predecessor is SideSync. There’s an app in Google Play, there’s a download for Windows 7…this is it, sorted….Nah, still doesn’t (expletive deleted) work.

I’ve been at this for hours and at this point I start to blame ActiveDirectory policies but it’s time to go home so I take the S2 home (leaving the USB cable) to see if I can get it to work on my personal laptop. And of course, it works straightaway.

At this point, the penny drops. It’s the bleeping USB cable. The one at work is a “charge only” cable whereas at home I’ve a proper “sync’n’charge” cable.  I’ve wasted half a day because I forgot that not all microUSB cables are the same. Back in work the next day, it’s time for lessons learned and I get the scissors out. Useless pieces of junk.

To paraphrase a European politician, there’s a special place in hell for companies that bundle charge-only cables with their products to save a few pennies.

And Samsung’s SideSync did the job perfectly. Thumbs up!


Stay Safer with 2FA and a YubiKey



In the past couple of weeks I’ve received three notifications from haveibeenpwnd informing me that a couple of organisations didn’t do a good enough job keeping my info secure. While it’s always going to be a good idea to change your login and password, any sites that use 2FA significantly reduce the value of stolen credentials (as long as you’ve signed up for the 2FA option!)

What’s 2FA? Two Factor Authentication. Still not clear? Maybe you’ve used a web site that’s texted your phone with an extra number or code that needs typed in before you are let in to your account. That number is a “second factor” and you’re using 2FA to get into the web site. Excellent choice. 2FA is good because it means that even if ne’er-do-wells steal your details from a sloppy site, they don’t have access to your phone, so they can’t get any further. However, SMS authentication is not perfect – there are some vulnerabilities typically using “man in the middle” attacks.

If you want to take your online authentication to the next level, you might want to consider a physical security key for your second factor. This isn’t a key like you’d use in a lock, but a USB key that doesn’t look too dissimilar to a memory stick. A good example is Yubico‘s YubiKey 4 series range, which supports a wide range of protocols including “FIDO U2F, smart card (PIV), Yubico OTP, Code Signing, OpenPGP, OATH-TOTP, OATH-HOTP, and Challenge-Response” and can be used with many of the big names like Google, Facebook and Dropbox. The keys can be used for authentication when logging onto PCs too (depending on OS, version etc.)

As an end user, you don’t need to know all the technical stuff, only that it’s a very safe way of authentication and it’s simple to use. To get started, you first associate the security key with your account, and the next time you try to logon to the service, you’ll be prompted to insert the security key into a USB slot (or swipe for NFC keys). You can use one key for multiple sites.

Yubico provides YubiKeys for different use cases. There’s the standard YubiKey 4 which is designed to go on a keyring (keychain) and works with USB A. The YubiKey 4C  also goes on a keyring but works with USB C. The 4 Nano and 4C Nano are smaller and are intended for semi-permanent installation in USB A and C sockets respectively. For NFC applications, such as suitably-equipped smartphones, there’s the YubiKey NEO. Physically, the keys are tough. Allegedly, they can go through the washing machine and get run over by a car, though I didn’t try any of these.

Here I have a YubiKey 4 and 4 Nano (shown left) and they both work in the same way – the only difference is the size and what you touch to activate the key. Let’s take a look at getting Google setup with a YubiKey.

Login to your Google account, say via Gmail. Click up on the top right where your “headshot” is and then click again on “My Account”.

Head on into “Signing in to Google”. I’ve blanked out a few sensitive items.

2-Step Verification is what you want. Hopefully, you’ve already got this turned on but if not, go ahead and get this sorted out. This page shows the factors you can use for 2FA. Security keys are topmost with text messages and backup codes below (not shown).

Click on “Add Security Key”.

Get the YubiKey ready and insert when instructed. Hit Next.

On the YubiKey 4, the “Y” logo on the key will flash – tap with your finger to confirm. On the Nano, tap inwards on the end of the key. Once the YubiKey has registered, you can give it a name.

And that’s it – all set and ready to go. The next time you login to Google on a computer that you haven’t used before you’ll be prompted to insert your YubiKey to prove who you are. Super secure!

Other services are similar. Here’s part of the Dropbox procedure.

And Facebook…

Supported sites are listed here and you’ll recognise a good few of the names.

If you can see the benefits of secure 2FA, the YubiKeys can be purchased from the Yubico online store. The YubiKey 4 is US$40 and the 4 Nano is US$50, with similar prices in GB£ from amazon.co.uk.

The 4 series can do a whole lot more, and if you just want the basics, then a YubiKey 3 at only US$18 is a good start. I personally bought one of these awhile ago to secure my Google account.

Thanks to Yubico for providing the YubiKeys for review.


iClever BoostCube 2-Port USB Wall Charger Review



USB chargers are two-a-penny these days but often they are cheap knock-offs with poor quality transformers that either pose a fire hazard or fail to deliver the required current to quickly recharge a smartphone or tablet. For not much more money, iClever offers a CE-marked UK spec wall charger with two USB A ports, delivering up to 2.4A from each. Let’s take a quick look at the IC-TC02.

The charger goes with the fairly standard design of a small cuboid connected to a power plug – I guess this is the BoostCube. This isn’t a travel charger (at least not in the UK spec), so there’s a three pin plug which doesn’t detach or fold up. Having said that, it does only weigh 82g. The charger appears well built and has a high gloss finish which makes some of the photos look a little odd because of the reflections. Hidden blue LEDs in the ports give off a soft glow.

The iClever BoostCube solves nicely the two device problem by having two charging ports. Many people have both a smartphone and a tablet so either two chargers are needed or one has to be charged before the other. Both ports will supply up to 2.4A each and iClever’s SmartID technology will ensure that the right current flows to the device.

I tried the charger with a couple of devices and encountered no problems. There was warmth to the transformer under full load but nothing close to being hot. Charging rates were as expected.

The iClever BoostCube 2-Port USB wall charger is available from Amazon UK for GB£8.99 at time of writing.

There’s an unboxing video below.

Thanks to iClever for providing the charger for review.


Where Are The Desktop SSD’s?



Windows logo blueI have a Compaq desktop PC that’s a few years old that is handy for tasks such as doing taxes or writing articles with. Unfortunately, it came with Windows Vista. More than a year ago I installed an inexpensive 128 gigabyte SSD in it. The SSD sped things up dramatically to the point where Vista was actually usable. To be honest, apart from being a bit of a resource hog, Vista has been quite stable on this machine.

While doing my 2016 taxes I received an on-screen Microsoft notification warning me that the Vista “End of Life” date is April 11, 2017. That presented me with a dilemma. Should I pay for the upgrade to update the Compaq to Windows 10? Or, should I just replace the machine with a newer model that came with Windows 10 preinstalled?

If I were buying a new machine, I would insist on an SSD. Unfortunately, after a bit of looking, it seems that desktop computers with factory-installed SSD’s are as rare as hens teeth and if they are offered at all they tend to be on the pricey side.

The other problem is that the old LCD monitor that’s attached to the Compaq is VGA only. I would have to also have an HDMI to VGA adapter unless I wanted to replace a perfectly functional monitor.

PC manufacturers complain that PC’s just aren’t selling very well. Have they ever thought about the fact that the models they are offering for sale tend to be mediocre? How about offering a $500 desktop tower that has a reasonable processor, a reasonable amount of RAM, and a 128 or 256 SSD?

Is that too much to ask?

In my opinion the SSD offers one of the biggest performance boosts of any upgrade ever, and yet PC manufacturers seem to be mindlessly failing to utilize it to excite consumers with. I’m afraid it doesn’t make any sense. Why should the consumer get excited about machines slowly booting from spinning hard drives that offer performance that is, from a perception standpoint, not that much different from the Windows machines on sale in the same stores a decade ago?

The only excuse for the lack of SSD-equipped desktop PC’s that seems to be offered is that customers “expect” one terabyte or larger drives on which to store massive amounts of pictures, music, etc. I don’t know if that is true or not. Personally, I stopped storing my stuff on my computer hard drives starting upwards of three years ago. I use a network-attached, Internet-savvy Western Digital MyCloud drive to store all of my digital stuff on. I also employ multiple inexpensive large spinning drives as redundant back-up drives. All of my 8,000 plus pictures are additionally stored with Google Photos for instant access to every picture I’ve ever taken right from my phone. I use my computers as creation and manipulation tools and NOT as mass storage devices.

In the end, I opted to go the cheaper route and buy a copy of Windows 10. It came on a USB thumb drive. It installed just fine on the Compaq. Everything seems to work, with the exception of an old Canon scanner that Canon offers no Windows 10 driver for. The loss of the Canon scanner is not a problem since my HP all-in-one WiFi printer can handle any flatbed scanning needs I might have. It did a large Windows update, and I installed a couple of things such as Dropbox and TurboTax 2016. The Compaq won’t win any speed competitions, but it’s poised to continue to do chores such as taxes until October 14, 2025, Windows 10’s scheduled end of life date. By then it might be time for a new computer.