Meet Maggie, PCMag'sDesigned for home storage and data backup, the Ugreen NASync DH4300 Plus is a four-bay NAS that can be pressed into service as a personal cloud server, a backup repository, a media center, and more. Powered by an eight-core CPU, it turned in solid scores on our file-transfer tests, but it offers only one LAN jack and no M.2 expansion slots. Moreover, Ugreen's sparse app catalog could use some major expansion; it currently features just a modest mix of apps versus what competitors like Synology and Asustor serve up. At $439.99, the DH4300 Plus is reasonably priced for a four-bay NAS, but if you need a more robust four-bay device—and money is no object—consider our Editors’ Choice winner, the $1,299 Asustor Lockerstor 4 Gen 3 (AS6804T). You get a massive app catalog, loads of high-speed I/O ports, four M.2 slots, and outstanding performance.
The DH4300 Plus doesn’t look like a typical four-bay NAS. The removable drive sleds are hidden under a removable top, giving the device a clean, streamlined appearance. Overall, the two-tone gray enclosure stands 8.4 inches high, and it measures 6.1 inches wide and 6.1 inches deep. The footprint is compact for a four-bay model, to be sure; most such designs are lying-down shoeboxes.
The front of the NAS holds a power button and five LED indicators for LAN and individual drive activity, as well as a USB 3.2 Gen 1 Type-C port and a square NFC sensor that offers one-tap connectivity between your iOS or Android phone and the NAS. With the first tap, you can download the Ugreen app; after that, you can tap to register the NAS and log in without entering your credentials.
The drive sleds pop in and out of the drive's top, from under the removable cap. You'll need to use screws (included) to hold your 2.5-inch or 3.5-inch SATA drives in place. (Like with most modern NAS chassis, you supply the drives.)
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Around back, you'll find single ports for the 2.5GbE network connection, HDMI, and power, as well as two USB 3.2 Gen 1 Type-A ports and a reset button. Running the whole works, you get an eight-core Rockchip CPU running at 2GHz, 8GB of DDR4 RAM, and 32GB of eMMC memory.
The DH4300 Plus uses Ugreen’s UGOS Pro operating system and can accommodate up to 128TB of storage using four 32TB drives. What you don't get, though, are M.2 SSD drive slots, which some other four-bay models do offer: Check out the Asustor Lockerstor 4 Gen 3 (AS6804T) and the Synology DiskStation DS425+. (Drives you'd install in these M.2 slots are typically used for caching most frequently accessed files, as primary storage, or both.)
Supported RAID levels include JBOD, Basic, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10, and supported file types include ext4 and Btrfs.
The UGOS software looks like most NAS operating systems, and is the same OS used by the Ugreen DXP2800 and the Ugreen DXP4800 Plus. It has a Windows-like desktop that comes populated with a spread of icons handling a number of tasks.
The Storage icon takes you to a screen where you can create storage pools and volumes, format drives, configure external (USB) storage, and check disk health. When you tap the Files icon, you'll open a screen where you can create and share folders and assign them permissions, and tackle a bunch of tasks for files and folders alike: renaming, uploading, and downloading. Tap the Control Panel to configure hardware and power settings; enable SMB, FTP, and WebDAV file services; assign user access permissions; configure network and security settings; and update the device’s firmware.
The App Center gives you access to just 30 apps. They're a decent lot; they let you use the NAS to back up and restore data, organize photos and videos, and turn the drive into a music or cloud server. In comparison, though, the competing Synology DiskStation DS425+ offers more than 105 apps, while the Asustor AS6804T's store gives you access to more than 200.
The Universal Search icon lets you scour the NAS for folders, files, photos, videos, and other data, while the Task Manager, pictured above, provides charts of CPU, GPU, memory, hard disk, and overall storage usage. The Support icon, meanwhile, opens a screen where you can view the user guide, contact support, and browse the Information Center, while the Log icon opens a screen with system event logs.
You can install the DH4300 Plus by using the abovementioned NFC method or by accessing the Ugreen website. You can also simply open a browser and type find.ugnas.com in the address bar. I chose the latter and started by plugging in four of our standard test drives, 10TB Seagate IronWolf models. These are 3.5-inch SATA units.
After connecting the NAS and my desktop PC to a 2.5GbE switch and powering up the NAS, I ran the find.ugnas.com command, and the NAS was immediately identified. I tapped Connect, gave the NAS a name, and created an administrator account.
It took a minute or two for the UGOS software to load, and after five minutes, the NAS rebooted, at which point I tapped Start on the Welcome screen. It prompted me to create a storage pool and a volume, so I selected RAID 5, which yielded 27.2TB of storage, and opted for Btrfs as my file system.
I waited a little over 13 hours for the drives to sync and the storage array to come online, and then I was ready to test.
To test NAS performance, we move a standard 4.9GB folder containing a mix of music, video, photo, and office document files back and forth between the NAS and the desktop PC to measure NAS read and write (file-transfer) performance.
The DH4300 Plus performed admirably on both tests—278MB per second for read and write operations alike—but it came in slightly behind the others. The Asustor AS6804T scored 283MB per second on both tests, and the Synology DS425+ almost matched the Asustor, at 282MB per second on both benchmarks. The Zettlab D4 led the pack, with 289MB per second on the write test and 298MB per second on the read test.
In practical terms, though, I'd deem the Ugreen, Asustor, and Synology NAS units a virtual tie in this benchmark set. With a spread of at most 5MB per second among them, all three are within our margin of error for these tests. And even the leading Zettlab model was pretty close. All of these NAS units let the IronWolf drives run close to their physical, spinning-metal limits.
Final Thoughts
(Credit: Joseph Maldonado)
Ugreen NASync DH4300 Plus
- 5.0 - Exemplary: Near perfection, ground-breaking
- 4.5 - Outstanding: Best in class, acts as a benchmark for measuring competitors
- 4.0 - Excellent: A performance, feature, or value leader in its class, with few shortfalls
- 3.5 - Good: Does what the product should do, and does so better than many competitors
- 3.0 - Average: Does what the product should do, and sits in the middle of the pack
- 2.5 - Fair: We have some reservations, buy with caution
- 2.0 - Subpar: We do not recommend, buy with extreme caution
- 1.5 - Poor: Do not buy this product
- 1.0 - Dismal: Don't even think about buying this product
Read Our Editorial Mission Statement and Testing Methodologies.
Priced at $439.99, the four-bay Ugreen DH4300 Plus NAS offers a relatively affordable way to create your own cloud server, back up important data, manage your photos, and stream media. It’s a solid performer, and it's easy to install and manage using the UGOS operating system. My main quibbles are that it lacks M.2 expandability, and the number of app offerings in the app store is woefully small versus some of the key competition.
It’s a good deal for the money, but if you need more expandability, superior performance, and a more generous selection of apps, the Asustor Lockerstor 4 Gen 3 (AS6804T) is your best bet and our Editors’ Choice pick for multi-bay NAS devices. However, at $1,299, it’s a significantly more expensive option.
About Our Expert
I’ve been working with computers for ages, starting with a multi-year stint in purchasing for a major IBM reseller in New York City before eventually landing at PCMag (back when it was still in print as PC Magazine). I spent more than 14 years on staff, most recently as the director of operations for PC Labs, before hitting the freelance circuit as a contributing editor.Â
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