Ubiquiti Networks NAS Devices: 2 Picks Ranked by Specs
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You need the best ubiquiti networks NAS devices for specific performance needs. This guide compares 2 models based strictly on published specifications. Ubiquiti offers compact storage units, including the 4-bay UNAS-4 White and the UNAS Pro 4. These devices feature M.2 NVMe interfaces and various Ethernet speeds. The top pick is the Ubiquiti UNAS-4 White 4-Bay NAS. It leads because it supports flexible drive sizes and fast caching via dual NVMe slots and 2.5x Ethernet.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Ubiquiti UNAS-4 White 4-Bay NAS Best overall | flexible drive sizes and fast caching | Check price of Ubiquiti UNAS-4 White 4-Bay NAS on Amazon |
| 2 | Ubiquiti UNAS Pro 4 NAS Also great | High-speed local storage with NVMe caching | Check price of Ubiquiti UNAS Pro 4 NAS on Amazon |
Our 2 picks
Ubiquiti UNAS-4 White 4-Bay NAS
Best for: flexible drive sizes and fast caching
- Drive Bays
- 4-Bay
- Network Connectivity
- Gigabit Ethernet
- M.2 NVMe Slots
- 2 slots
- Form Factor
- 3.5 Inch
- Hardware Interface
- M.2 NVMe
View on Amazon: Ubiquiti UNAS-4 White 4-Bay NAS Affiliate link
This is a 4-bay network-attached storage device designed for users who need expandable capacity and fast caching. It supports 2.5 and 3.5-inch hard drives in its bays. The unit includes dual M.2 NVMe SSD slots for cache acceleration. Connectivity is handled by a Gigabit Ethernet port running at 2.5x speed. A USB-C port is also available for direct connections. The white chassis measures 25 inches wide.
Pros
- Dual M.2 NVMe SSD cache slots
- 2.5x Gigabit Ethernet speed
- Supports 2.5 and 3.5-inch drives
- USB-C connectivity option
Cons
- No mention of 10GbE support
- No mention of built-in UPS protection
- No mention of integrated display
Good fit if
- You need fast cache speeds for frequent reads
- You want to mix 2.5 and 3.5-inch drives
- You prefer USB-C for direct access
Skip if
- You require 10GbE networking
- You need a built-in UPS
- You want an integrated display
Verdict: Ubiquiti 4-Bay NAS with NVMe Cache offers dual NVMe slots and 2.5x Ethernet for users prioritizing cache speed and flexible drive sizes. It suits those who value direct USB-C access over high-speed networking.
Ubiquiti UNAS Pro 4 NAS
Best for: High-speed local storage with NVMe caching
View on Amazon: Ubiquiti UNAS Pro 4 NAS Affiliate link
The Ubiquiti UNAS Pro 4 is a 4-bay network-attached storage device designed for enterprise-class 3.5-inch SATA hard drives. It includes M.2 NVMe SSD caching slots to improve read and write speeds for frequently accessed data. The unit comes with a 10 Gigabit direct connection cable, allowing for high-speed data transfer between the NAS and your computer or server. This setup suits users who need robust local storage with accelerated performance capabilities.
Pros
- Supports 4 enterprise-class 3.5-inch SATA HDDs
- Features M.2 NVMe SSD caching slots
- Includes 10 Gigabit direct connection cable
Cons
- Limited to 4 drive bays
- No mention of external expansion port support
- No mention of USB 3.0 or Thunderbolt ports
Good fit if
- You need high-speed internal caching for large files
- You prefer direct 10Gbe connectivity for your network
- You are building a compact enterprise-grade storage array
Skip if
- You require more than 4 drive bays
- You need external USB expansion for peripherals
- You want a consumer-grade budget solution
Verdict: Ubiquiti UNAS Pro 4 NAS is a specialized storage unit for users who prioritize 10Gbe connectivity and NVMe caching over raw capacity. It fits those who need a small, high-performance array for critical data.
Specifications side by side
| Spec | Ubiquiti UNAS-4 White 4-Bay NAS | Ubiquiti UNAS Pro 4 NAS |
|---|---|---|
| Drive Bays | 4-Bay | not stated |
| Network Connectivity | Gigabit Ethernet | not stated |
| M.2 NVMe Slots | 2 slots | not stated |
| Form Factor | 3.5 Inch | not stated |
| Hardware Interface | M.2 NVMe | not stated |
| Number of Bays | 4-Bay | not stated |
| Color | White | not stated |
| Model | UNAS-4-W | UNAS Pro 4 |
Ubiquiti Networks NAS Lineup Overview
The current selection includes two distinct 4-bay models. The UNAS-4 White stands out for its dual NVMe slots and 2.5x Ethernet connectivity. This configuration supports flexible drive sizes and offers direct USB-C access, prioritizing cache speed and expandability over raw network throughput. It suits users who value adaptable storage configurations.
The UNAS Pro 4 focuses on high-speed local storage with 10Gbe connectivity. It targets those needing a compact, high-performance array for critical data. This model emphasizes NVMe caching and rapid data transfer rates. You should choose the UNAS-4 White if you need versatile drive options. Select the UNAS Pro 4 if your workflow demands faster network speeds and specialized performance.
Who Ubiquiti Networks Fits
This brand suits users who need compact, high-performance storage with fast caching. The range currently includes only two 4-bay models, both designed for flexibility and speed. The UNAS-4 White offers dual NVMe slots and 2.5x Ethernet, while the UNAS Pro 4 prioritizes 10Gbe connectivity. You will not find larger drive counts or different form factors in this specific list. If you require extensive raw capacity or a larger array, this lineup may not meet your needs. These devices are ideal for those valuing direct USB-C access and NVMe speed over sheer volume.
Choosing the Right Ubiquiti NAS Drive
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Select the Hardware Interface
Check the hardware interface type before purchasing. The UNAS-4 White uses an M.2 NVMe interface for its cache drives. This standard offers significantly higher speeds than older SATA-based caching solutions. You should verify that your cache drives are compatible with this specific slot type. If you already own NVMe SSDs, this model integrates them directly. This choice impacts how quickly your system reads and writes data to the cache layer. Ensure your storage strategy aligns with this modern interface standard for optimal performance.
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Evaluate Cache Speed Needs
Consider whether you need fast caching for your workflow. The UNAS-4 White features dual NVMe slots to enhance read and write speeds. This setup is ideal if you frequently access large files or run virtual machines. The UNAS Pro 4 also prioritizes NVMe caching for high-speed local storage. You should compare these against models without cache support. If your data access patterns involve frequent small file reads, the cache becomes critical. This spec directly influences daily responsiveness and application loading times.
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Match Network Connectivity
Review the network interface specifications carefully. The UNAS-4 White includes 2.5x Ethernet ports for improved throughput. This is sufficient for most home and small office environments. The UNAS Pro 4 targets users who require 10Gbe connectivity for faster data transfer. You should assess your current router capabilities. If your network infrastructure supports 10Gbe, the Pro 4 offers better potential speeds. Otherwise, the standard Ethernet on the UNAS-4 White provides a reliable and cost-effective solution for general storage tasks.
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Check Drive Compatibility
Verify that your hard drives fit the specified form factor. The UNAS-4 White is designed for 3.5-inch drives. This is the standard size for most desktop hard disk drives. You must ensure your purchased drives match this physical dimension. Using incompatible drive sizes can prevent proper installation. The 4-bay configuration allows you to install multiple drives for RAID arrays. This flexibility lets you balance capacity against redundancy. Always measure your drives to confirm they fit within the chassis constraints.
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Assess Bay Requirements
Determine the number of bays you actually need. Both listed models offer a 4-bay configuration. This provides a balance between storage capacity and physical footprint. You should consider future expansion needs when choosing this size. Four bays allow for various RAID configurations, including RAID 5 or RAID 6. This setup protects your data against single drive failures. If you need more space, you may need to look for higher-capacity drives rather than more bays. Evaluate your current data volume to ensure four bays are sufficient.
Frequently asked questions
Which Ubiquiti NAS is best for flexible drive sizes?
The UNAS-4 White is the best choice for users who need flexible drive sizes. It features a 3.5-inch form factor and four bays, allowing you to mix and match storage capacities easily. This model also includes dual NVMe slots for fast caching, making it ideal for those who prioritize performance adaptability over raw capacity alone.
Does the UNAS-4 White support high-speed networking?
Yes, the UNAS-4 White includes 2.5x Ethernet connectivity. This setup provides faster local transfer speeds than standard Gigabit ports, which helps when moving large files between devices on your network. It is designed for users who want a balance between flexible storage options and improved network throughput for everyday tasks.
What is the main advantage of the UNAS Pro 4?
The UNAS Pro 4 is optimized for high-speed local storage with NVMe caching. It is designed for users who prioritize 10Gbe connectivity over raw capacity. This makes it a specialized unit for critical data that requires a small, high-performance array. It suits environments where speed and reliability are more important than maximum storage space.
How many bays do these Ubiquiti NAS devices have?
Both the UNAS-4 White and the UNAS Pro 4 feature four bays. This 4-bay configuration allows you to install multiple hard drives for redundancy or increased storage capacity. The consistent bay count across the lineup means you can choose between different connectivity and caching features without changing your physical storage footprint.
Is NVMe caching available on the UNAS-4 White?
Yes, the UNAS-4 White offers dual NVMe slots for caching. This hardware interface allows you to attach high-speed solid-state drives to accelerate read and write operations. It is particularly useful for improving performance in virtualization or media editing workflows where fast access to frequently used data is essential for smooth operation.
Which model is better for direct USB-C access?
The UNAS-4 White is better for users who value direct USB-C access. This feature allows you to connect external devices directly to the unit for quick data transfers. It prioritizes convenience and cache speed over the high-speed networking focus of the UNAS Pro 4, making it a versatile option for various home or small office setups.