Tech
These Handy Thumb Drives Are Great for Sharing and Backing Up Files
Photograph: Simon Hill
Other Flash Drives We Like
We have tested many other USB flash drives that did not make the cut. Here are a few that might be worth considering for some folks.
Photograph: Simon Hill
Kingston Dual Portable SSD (1 TB) for $229: With a snazzy metallic red body, this SSD disguised as a flash drive is very speedy, matching the stated 1,050 MB/s read and 950 MB/s write in my tests. It is USB 3.2 Gen 2 with a C jack at one end and an A jack at the other, both with removable covers. As much as I like this drive, which comes in 512-GB, 1-TB, and 2-TB models, it is on the pricey side.
Amazon Basics Flash Drive (128 GB) for $18: I like the grippy texture on the slider of this drive because it’s easy to open one-handed and locks in place securely. The loop at the top is perfect for a key ring, and it is lightweight. Performance was limited, as you might expect at this price, but it consistently exceeded the stated 130 MB/s read and 30 MB/s write speeds for larger files, though it only had 116 GB usable out of the box.
Buffalo External SSD-PUT Stick (500 GB) for $70: Another SSD in a flash drive body, this drive hit 450 MB/s in my tests and offers shock protection for falls. There’s also a sliding USB-A, and it comes with a USB-C adapter. It is pretty chunky for a flash drive, so you may find it blocks adjacent ports. You can also get reasonably priced 1- and 2-TB versions of this drive.
PNY Pro Elite V2 (256 GB) for $60: This sliding drive has a plastic cover to protect the USB-A plug, and was our compact pick for a while. It performed well (read and write speeds hovered around 415 MB/s and 425 MB/s) in my tests, and has an opening for a lanyard or keyring. I tested the 256-GB drive, but there are 512-GB and 1-terabyte models.
SanDisk Ultra Dual Drive Go (128 GB) for $29: This handy drive swivels to give you USB-C or USB-A, and comes in various sizes and some fun colors, but the lower capacity drives are slow (USB 3.1). You can get the 128 GB drive and up in USB 3.2 Gen 1 for up to 400 MB/s read and it’s a solid alternative to the PNY Duo above.
PNY Elite-X (128 GB) for $16: This super-compact, sliding drive has a USB-C 3.2 Gen 1 jack and a loop on the end to fit on a keyring. It worked fine but proved unremarkable in my tests (around 200 MB/s read, and 130 MB/s write).
Kingston IronKey Keypad 200 (16 GB) for $112: If you need a secure drive, Kingston’s IronKey boasts FIPS 140-3 certification, XTS-AES 256-bit encryption, and a special epoxy on its circuitry to make it impossible to remove components. On the downside, it is expensive, the keypad is fiddly, and 10 wrong entries wipe the drive.
Samsung Bar Plus (256 GB) for $52: An elegant, one-piece, curved design makes this drive easy to withdraw and there’s a loop so you can slip it onto a keyring. Test read speeds were just shy of 400 MB/s, with write speeds just over 100 MB/s, but the smaller drives (32 GB and 64 GB) are significantly slower. The Bar Plus is also a durable option, with Samsung claiming it is waterproof, shock-proof, temperature-proof, magnet-proof, and x-ray-proof.
Avoid These Flash Drives
Photograph: Simon Hill
Silicon Power DS72 Portable SSD (1 TB): This is a reasonable price for a 1-TB drive with USB 3.2 Gen 2 USB-A and USB-C connectors, and it consistently hit 450 MB/s read and write speeds in my tests (it can hit 1050 MB/s and 850 MB/s with the right gear). It got quite warm to the touch, but the reason I don’t recommend this drive is the stupid plastic connector covers. You have to bend them back, and they get in the way when you’re trying to insert the drive.
Verbatim Dual (64 GB): This teeny drive is cheap and has both USB-A and USB-C plugs, but I found write speeds were variable (60 MB/s for USB-C and 90 MB/s for USB-A) and read speeds were around 150 MB/s for both. There is a cover for the USB-A and a wee strap you can attach, but this drive is almost too small, and it proved awkward to insert and remove. It also comes in 16- or 32-gigabyte options.
How to Eject and Format Drives
It’s a good idea to format your USB flash drive before you start using it. You’ll usually be asked what format you want to use. Almost every device will recognize the FAT32 format, but it limits the individual file size to 4 GB. Go for exFAT if you have larger files. If you format a flash drive, it will completely wipe everything stored on it. Here’s how to do it manually:
- On a Windows computer: Open File Explorer and look for your drive under This PC. Right-click on it, and select Format.
- On a Mac: Type Disk Utility into the Search, or find it via Applications > Utilities. Select your drive from the list and click Erase at the top. Then you can rename and choose a format.
- On a Chromebook: Open Files and right-click on your drive to choose Format device.
You’re probably familiar with warnings about removing a drive without ejecting it first. But there’s a genuine risk your data will be corrupted, so here’s how to do it properly:
- On a Windows computer: You can click the Safely Remove Hardware notification icon in the system tray and choose the Eject option. If you prefer not to have to eject, type Device Manager into the search bar and click to open. Expand Disk Drives and right-click on your USB flash drive, choose Properties, Policies, and set to Quick Removal.
- On a Mac: You will see an eject icon listed next to the drive name in Finder, or you can simply drag the flash drive image on your desktop to the trash.
- On a Chromebook: Open Files and right-click on your drive, then select Eject device.
- On an Android device: You can open and expand the USB notification to find an Eject option.
- On an iPhone or iPad: There is no eject option. Ensure no data transfer is in progress before you pull it. It’s a good idea to close the Files app or whatever app you were using to transfer files.
How to Get the Most From Your USB Flash Drive
There are a few things to keep in mind when you’re shopping for USB flash drives, and we also have some tips for using them.
Capacity: To decide on the capacity of the storage device you need, first check the size of the folders or files you want to copy. Each USB drive in our guide has a stated capacity, but the usable storage will be slightly less than that, because the device’s firmware requires space.
Speed: USB standards are advancing all the time, and we recommend USB 3.0 as a minimum, though higher is better. While USB standards have different theoretical maximum speeds, it’s crucial to check the manufacturer’s stated read and write speeds for each drive. If you’re primarily transferring data, you’ll want to look for a drive with high write speeds. If you’re planning on launching software on a computer through the drive (like a video game), then you’ll want a model with high read speeds. Manufacturers will state average speeds, but most drives are much faster at transferring large files and tend to be far slower at transferring small files.
Compatibility: Many flash drives will work with any device with the relevant USB port, but check compatibility to avoid disappointment. If you want to use a drive with an Android device or something from the iPhone 16 range or later, it will require USB on-the-go (OTG) support. Most Android devices do support USB OTG. You will get a notification when you insert a flash drive with options that should include File Transfer. You can try the USB OTG Checker app to confirm support if you’re unsure. Apple’s earlier iPhones and iPads don’t support USB OTG, but you can install a companion app for drives, like SanDisk’s iXpand series.
Connectors: Most flash drives have USB-A connectors, but you can also get drives with USB-C, MicroUSB, and Lightning connectors. If you plan on using a flash drive with your smartphone and computer, snag one with both of the required types of connectors. You can also buy USB hubs with multiple USB ports or adapters, but pay close attention to the supported standard or it may limit your data transfer speeds. This Anker USB-A to USB-C adapter, for example, is USB 3.0.
Security: Remember that USB drives can cause security issues, particularly for businesses, and you should never plug in random drives you find lying around. If you plan to keep sensitive data on your flash drive, then consider biometric or passcode protection, and look into the level of encryption it offers. There are software services that offer encryption and allow you to password-protect your files on any USB flash drive.
I run read and write speed tests on every drive using USB Flash Benchmark and CrystalDiskMark. I also load HD and 4K movies onto each drive and play them on an LG OLED TV, make photo backups from phones and laptops, and copy files across supported devices. I have tested some drives as security camera backups, as NAS (network attached storage) in routers, for playing MP3 music files, and to load games and saves onto various retro consoles. Our top picks continue to be used regularly for file backups over months, so we can be confident that the performance does not degrade.
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Tech
Join Our Livestream: Musk v. Altman and the Future of OpenAI
Two of Big Tech’s most influential billionaires, Sam Altman and Elon Musk, will go head-to-head in a highly anticipated trial beginning April 27. In Musk v. Altman, a judge, advised by a jury, will ultimately determine whether OpenAI has strayed from its founding mission to ensure that artificial general intelligence (AGI) benefits humanity, and the ruling could influence how the world’s leading AI developer controls and distributes its technology. For now, you can learn more about the trial here.
On the Panel
On May 8, a panel of WIRED experts will go live to answer your questions about this consequential case.
- Zoë Schiffer: WIRED’s director of business and industry, who oversees coverage of business and Silicon Valley.
- Maxwell Zeff: a senior writer at WIRED covering the business of artificial intelligence. He writes the weekly Model Behavior newsletter, which focuses on the people, communities, and companies behind Silicon Valley’s AI scene.
- Paresh Dave: a senior writer at WIRED covering the inner workings of Big Tech companies. He writes about how apps and gadgets are built and about their impacts while giving voice to the stories of the underappreciated and disadvantaged.
Ask a Question
Submit all your burning questions about this historic legal battle at WIRED’s next, subscriber-only livestream scheduled for May 8 at noon ET / 9 PT. To leave questions in advance as the trial unfolds, head to the comment section below.
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In the meantime, check out past livestreams on Big Tech and the military, the future of electric vehicles, and more.
Tech
Blackbox replaces two racks of HPE storage with 8U of Everpure | Computer Weekly
Service provider Blackbox Hosting has consolidated storage from two full racks down to just 8U of rack space following migration to Everpure FlashArray hardware. The move has allowed the provider to deliver “sovereign” cloud services with a 10:1 data reduction ratio and an 85% reduction in power utilisation.
Blackbox Hosting evolved over 14 years from a single rack to supporting more than 1,500 virtual machines (VMs), and has datacentre capacity at Canary Wharf with a secondary site in Slough.
The company operates a fully managed, sovereign (see box) model for major software suppliers including Iris Software Group, which supports payroll and financial management for approximately 60% of UK academies.
Blackbox previously relied on HPE 3PAR 8400 all-flash arrays. However, as the hardware approached end-of-life, the company faced mounting challenges.
“Support renewal costs were significant, and we had issues with HPE support,” said Matthew Burden, CEO at Blackbox Hosting. “We had a power supply failure in a DR site, and despite a four-hour SLA [service-level agreement], it took nearly two weeks to replace. They also began charging for firmware updates that were previously included.”
The 3PAR environment was cumbersome, said Burden, and required two full racks of hardware to manage the company’s near-petabyte scale.
When it looked for a more performant and dense alternative, Blackbox turned to Pure Storage, which recently rebranded as Everpure.
High density; ‘one-second’ RPO
Blackbox has deployed a range of Pure Storage FlashArray models across its two datacentres to support its active-passive high-availability design.
The deployment includes two FlashArray//X50 R3s, two X50 R4s, and two FlashArray//C20 units for file clusters.
The hardware supports predominantly Hyper-V and VMware VMs, running 90% Windows-based workloads, primarily SQL Server, plus Linux servers.
The transition from 3PAR to Pure has seen a dramatic consolidation of physical space. “We went from two entire racks filled with disks to two 4U boxes,” said Burden. “Our total provisioned storage is 998TB and we get a total reduction of 10:1. 3PAR had deduplication, but not compression on SSDs.”
Beyond space savings, the disaster recovery (DR) capabilities have seen a massive upgrade. Previously, the company’s recovery point objective (RPO) was limited to 15 minutes. “With Pure Storage, it is one second,” said Durden. “We replicate all 1,500 VMs to our backup datacentre. For a customer with 1,000 VMs, we can spin those up for quarterly testing and they are only one second out from live data.”
Performance and sustainability
The shift to non-volatile memory express-based flash has also provided a significant boost to the provider’s green credentials. Sustainability reports generated via Pure’s Evergreen dashboard show an 85% saving in power utilisation compared with the legacy HPE environment.
For the end users – which include major corporate energy, finance and transport organisations – the benefit is felt in application speed. “We’ve had clients with huge databases that were always slow with previous providers,” said Justin Field, commercial director at Blackbox. “They can pull data significantly faster now, which is a big play for us when competing against hyperscalers.”
Burden also highlighted the “zero-touch” operational simplicity of the new arrays. “The older arrays were very cumbersome; you had to know exactly what you were doing,” he said. “The Pure web interface is very simple, which makes the operational side much easier. Plus, with Evergreen, we don’t have to pull arrays out for upgrades. We can just put in new controllers as scale increases.”
Tech
Tackling the housing shortage with robotic microfactories
A national housing shortage is straining finances and communities across the United States. In Massachusetts, at least 222,000 homes will have to be built in the next 10 years to meet the population’s needs. At the same time, there are numerous challenges in traditional construction. There’s a shortage of skilled construction workers. Most projects involve multiple contractors and subcontractors, adding complexity and lag time. And the construction process, as well as the buildings themselves, can be a major source of emissions that contribute to climate change.
Reframe Systems, co-founded by Vikas Enti SM ’20, uses robotics, software, and high-performance materials to address these problems. Founded in 2022, the company deploys microfactories that bring housing fabrication and production closer to the regions where the homes are needed. The first homes designed and manufactured in Reframe’s first microfactory have been fully built in Arlington and Somerville, Massachusetts.
Enti’s experiences in MIT System Design and Management (SDM) shaped the company from its start. “Learning how to navigate the system and finding the optimal value for each stakeholder has been a key part of the business strategy,” he says, “and that’s rooted in what I learned at SDM.”
Better tools for system-level problems
Enti applied to SDM’s master of science in engineering and management while he was working at Kiva Systems, overseeing its acquisition by Amazon and transformation into Amazon Robotics. He found that the SDM program’s fundamentals of systems engineering, system architecture, and project management provided him with the tools he needed to address system-level problems in his work.
While he was at MIT, Enti also served as an associate director for the MIT $100K Entrepreneurship Competition, which offers students and researchers mentorship, feedback, and potential funding for their startup ideas. He realized that “there isn’t a single formula for how businesses start, or how long it takes to get them started,” he says, which helped shape his plans to start his own business.
Enti took a leave of absence from MIT to oversee the expansion of Amazon Robotics in Europe. He returned and completed his degree in 2020, writing his thesis on developing technology that could mitigate falls for elderly people. This instinct to use his education for a good cause resurfaced when his daughters were born. He wanted his future business to address a real-world problem and have a social impact, while also reducing carbon emissions.
Growing housing, shrinking emissions
Enti concluded that housing, with immediate real-world impact and a significant share of global carbon emissions, was the right problem to work on. He reached out to his colleagues Aaron Small and Felipe Polido from Amazon Robotics to share his idea for advanced, low-cost factories that could be deployed quickly and close to where they were needed. The two joined him as co-founders.
Currently, the microfactory in Andover, Massachusetts, produces structural panels, with robotics completing wall and ceiling framing and people completing the rest of the work, including wiring and plumbing. Eventually, Reframe hopes to automate more of the building process through further use of robotics. The modular construction process allows for reduced waste and disruption on the eventual home site. And the finished homes are designed to be energy-efficient and ready for solar panel installation. The company is set to start work soon on a group of homes in Devens, Massachusetts.
In addition to the Andover location, Reframe is setting up in southern California to help rebuild homes that were destroyed in the area’s January 2025 wildfires. The company’s software-assisted design process and the adjustability of the microfactories allows them to meet local zoning and building codes and align with the local architectural aesthetic. This means that in Somerville, Reframe’s completed buildings look like modernized versions of the neighboring three-story buildings, known locally as “triple-deckers.” On the other side of the country, Reframe’s design offerings include Spanish-style and craftsman homes.
“Housing is a complex systems problem,” Enti says, explaining the impact SDM has had on his work at Reframe. The methods and tools taught in the integrated core class EM.412 (Foundations of System Design and Management) help him tackle systems-level problems and take the needs of multiple stakeholders into account. The Reframe team used technology roadmapping as they devised their overall business plan, inspired by the work of Olivier de Weck, associate head of the MIT Department of Aeronautics and Astronautics. And lectures on project management from Bryan Moser, SDM’s academic director, remain relevant.
“Embracing the fact that this is a systems problem, and learning how to navigate the system and the stakeholders to make sure we’re finding the optimal value, has been a key part of the business strategy,” Enti says.
Reframe Systems is set to continue learning through iteration as they plan to expand their network of microfactories. The company remains committed to the core vision of sustainably meeting the country’s need for more housing. “I’m grateful we get to do this,” Enti says. “Once you strip away all the robotics, the advanced algorithms, and the factories, these are high-quality, healthy homes that families get to live in and grow.”
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