Best 4-Bay NAS

Best 4-Bay NAS in 2024: Reliable Network-Attached Storage

Access your data from any device with these top NAS options!

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As more and more households and businesses invest in NAS for easily shared storage, the question of which is the best network-attached storage size is a prevalent one. For a healthy median between the largest and smallest, we recommend choosing one of the best 4-bay NAS units. Able to scale to large storage sizes, or kept relatively compact, they are an ideal step up for those needing simultaneous access to documents, data or larger photo or video files.

We’ve compiled a list of recommended 4-bay NAS units, to suit different price points and use cases. So whether you need a hyper-fast NAS for simultaneous editing or a basic backup unit, we’ve got you covered with any array of products.

Best 4-Bay NAS: Synology DS923+

Synology DS923+

Synology DS923+

Bays

4

HDD Form Factor

3.5″

RAID Compatibility

Yes

Pros
  • Responsive RAM
  • Upgradeable
Cons
  • Difficult to install

Synology are one of the industry-leading manufacturers of NAS units, and the DS923+ is their best 4-bay NAS, and the best 4-bay NAS in our rankings. Responsive and reliable, this unit is sure to suit almost any storage scenario.

Scalability is the key design philosophy with Synology, and as such the base DS923+ comes with 4 hard drive bays and 4GB of DDR4 RAM – but both can be upscaled should you need. You can garner over 108TB of storage from the base unit: more than accommodating most storage needs, and the RAM can be brought up to as much as 32GB. With built-in backups for photo and video files, you can ensure speedy and secure storage at all times.

All of this can be a hassle to set up, however: Synology’s installation process isn’t the most beginner-friendly, and this can make the initial hours with the DS923+ difficult. Still, if you can surpass that, the DS923+ will surpass all expectations.

Best Budget 4-Bay NAS: Terramaster F4-423

Terramaster F4-423

Terramaster F4-423

Bays

4

HDD Form Factor

3.5″, 2.5″

RAID Compatibility

Yes

Pros
  • Affordable
  • Large capacity
Cons
  • Limited app compatibility

It’s often difficult to find a “budget” NAS that doesn’t come with pre-installed drives. Thankfully, the Terramaster F4-423 exists as a lower-price alternative to the high-end 4-bay NAS units on the market.

With each of the four drives housing 20TB of storage, the F4-423 offers 80TB of space – not the largest, but far from the smallest. The build quality is also sterling, made of aluminum for a sturdy build and improved heatsink. Installation of drives is quick and easy with no tools required, and 4GB of RAM means the F4-423 is reliable and speedy. Factor that in with the lower price point, and this is a highly desirable unit.

So why isn’t this the best 4-bay NAS? Where most other NAS units come with specialist apps and programs to help compatible devices manage the storage, the F4-423 is notably lacking in this department. But if you need a sturdy and scalable NAS on a tighter budget, then this 4-bay unit is ideal.

Best 4-Bay NAS for Business: Synology RS1619xs+ Rackstation

Synology RS1619xs+ Rackstation

Synology RS1619xs+ Rackstation

Bays

4

HDD Form Factor

3.5″, 2.5″

RAID Compatibility

Yes

Pros
  • Powerful CPU
  • Slim form factor
Cons
  • Loud

For businesses looking to run responsive and reliable servers or other high-end network processes, the Synology RS1619xs+ is a great option. With a longer form factor instead of a taller one, this unit is easily stacked and placed in a smaller space, or stacked in a larger unit.

What separates the RS1619xs+ from other Synology NAS units is the processing power: boasting a quad-core CPU as well as 8GB of RAM, even the base unit is a productivity powerhouse. With a maximum storage capacity of 108TB, this unit matches any businesses storage needs. Both memory and RAM are of course scalable to a ridiculous degree, with the maximum memory of the RS1619xs+ being 64GB. All-in-all, this unit makes itself perfect for servers, surveillance systems or simply highly responsive storage.

That said, you’ll want a dedicated space in your office or work environment, as this NAS does run loud, with a fan almost constantly running to keep the operating temperature low. If you don’t mind the noise, then the RS1619xs+ is a terrific 4-bay NAS for your business.

Best Fast 4-Bay NAS: Terramaster F4-424

Terramaster F4-424

Bays

4

HDD Form Factor

3.5″, 2.5″

RAID Compatibility

Yes

Pros
  • Fast processing speeds
  • Accommodates different server types
Cons
  • Limited storage capacity

If the RS1619xs+ specifications weren’t responsive enough for your liking, consider the Terramaster F4-424: a highly responsive 4-bay NAS. With an impressive 150% boost in speeds compared to other Terramaster units, you can run all manner of processes on this NAS without slowing down.

The F4-424 has improved RAM over the DS923+; with an incredible 32GB by default. The NAS can also garner boosted processing speeds of up to 3.8GHz thanks to its 8-core CPU. The four HDD bays have a satisfying push-shut design that makes them great for securely installing new drives. The F4-424 is also designed to accommodate setting up email servers and other specialist internal databases, for easy and versatile usage across a wide range of applications.

However, at only 88TB, the F4-424’s storage is less than that of the DS923+, which is especially frustrating when factoring in RAID compatibility or other backups. But with unmatched speeds, the F4-424 is still a top NAS.

FAQs

Does RAID take up hard drive space?

RAID certainly reduces the actual storage space of your NAS or drive, but depending on the configuration will either split the backup over multiple disks or dedicated one or two drives as backups. This means that a drive’s actual storage space will be less than the total storage space.

Is a 4-Bay NAS worth it?

Most users who opt for a 2-bay NAS end up upgrading to a 4-bay NAS eventually, so 4-bay NAS units are among the most popular on the market. Though you can get as large as 8 or even 12 drive bays in larger models, 4 seems to be the most appropriate median for homes and businesses.

In Summary

That concludes our ranking of the best 4-bay NAS units on the market – whether you need a reliable storage solution for your business or are merely looking to back up an array of family information, these units are well worth the expense.

Looking to supplement those NAS with new hard drives? Check out our guide on the best 16TB hard drives available today.

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