Rankings
The TerraMaster F4-424 Pro is a high-performance 4-bay NAS aimed at business and media-centric use, featuring an 8-core Intel i3-N305 CPU, 32 GB DDR5 RAM and dual 2.5 GbE ports, supporting 4K 60 fps transcoding and NVMe caching.
The Asustor AS5402T is a high-performance 2-bay NAS with quad-core processing, dual 2.5 GbE, four M.2 NVMe slots and HDMI output, aimed at creators and small offices.
The Asustor Lockerstor 4 Gen2 (AS6704T) is a high-performance 4-bay NAS aimed at power users and small businesses, offering up to 88 TB raw capacity, extensive RAID options, dual 2.5 GbE networking and four M.2 NVMe slots. It delivers fast file transfers and 4K media handling, though it lacks native 10 GbE and requires tools for drive installation.
The TerraMaster F6-424 is a 6-bay NAS powered by an Intel N95 quad-core CPU, 8 GB DDR5 RAM (expandable to 32 GB) and dual 2.5 GbE ports, delivering high-performance storage, 4K hardware transcoding and extensive RAID options for SMBs and power users.
The QNAP TS-216G-US is an affordable 2-bay NAS powered by an ARM Cortex-A55 CPU, offering 2.5 GbE connectivity, AI-enhanced features, and a rich software ecosystem for home and small-office users.
The TerraMaster F2-425 Plus is a compact two-bay NAS that combines a powerful Intel N150 quad-core CPU, 8 GB DDR5 RAM, dual 5 GbE ports and three M.2 NVMe slots, delivering high-speed hybrid storage and direct 4K/8K media playback via HDMI.
The TerraMaster F2-425 is a compact 2-bay NAS with an Intel Celeron quad-core CPU, up to 60 TB storage, 2.5 GbE networking and hardware-accelerated 4K transcoding, aimed at home users and small offices.
The TerraMaster F4-425 Plus is a high-performance 4-bay NAS featuring an Intel N150 quad-core CPU, 16 GB DDR5 memory, dual 5 GbE networking and three M.2 NVMe slots. It targets homelab enthusiasts and small-business users who need ample RAM and fast hybrid storage, though its UI and expandability lag behind some competitors.
| Attribute | | | | | | | | |
|---|---|---|---|---|---|---|---|---|
88 TB | 88 TB | 144 TBbest | 44 TB | 48 TB | 120 TB | 88 TB | 60 TB | |
4 | 4 | 6best | 2 | 2 | 4 | 2 | 2 | |
2.5 Gbps | 2.5 Gbps | 2.5 Gbps | 2.5 Gbps | 2.5 Gbps | 5 Gbpsbest | 5 Gbpsbest | 2.5 Gbps | |
8best | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
32 GBbest | 4 GB | 8 GB | 4 GB | 4 GB | 16 GB | 8 GB | 4 GB | |
| ↓ lower better | 33 W | 35 W | 43 W | 13.907 Wbest | 22.9 W | 62 W | 48 W | 48 W |
| ↓ lower better | 21 dB | 17.6 dBbest | 22 dB | — | 18.6 dB | 33 dB | 20 dB | 20 dB |
2 years | 3 yearsbest | 2 years | 2 years | 3 yearsbest | 2 years | 2 years | 2 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | | | | | | | |
|---|---|---|---|---|---|---|---|---|
Security(1) | ||||||||
OS Compatibility | TOS 5.0 | — | TOS | QTS 5.2.8 | ADM | TOS 6.0.783 | TOS 6.0 | TOS 6 |
Performance(6) | ||||||||
CPU Model | Intel Core i3-N305 | Intel Celeron N5105 | Intel N95 | ARM Cortex-A55 Quad-Core 2.0 GHz | Intel Celeron N5105 | Intel N150 | Intel N150 | Intel Celeron N5095 |
CPU Cores | 8 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
System Memory (GB) | 32 GB | 4 GB | 8 GB | 4 GB | 4 GB | 16 GB | 8 GB | 4 GB |
Ethernet Speed (Gbps) | 2.5 Gbps | 2.5 Gbps | 2.5 Gbps | 2.5 Gbps | 2.5 Gbps | 5 Gbps | 5 Gbps | 2.5 Gbps |
Power Consumption (Active) (W) | 33 W | 35 W | 43 W | 13.907 W | 22.9 W | 62 W | 48 W | 48 W |
Noise Level (dB) | 21 dB | 17.6 dB | 22 dB | — | 18.6 dB | 33 dB | 20 dB | 20 dB |
Build & Design(3) | ||||||||
Weight (kg) | 1.905 kg | 3.5 kg | 2.7 kg | 1.45 kg | 1.6 kg | 2.9 kg | 1.9 kg | 1.3 kg |
Power Supply Type | Internal | 90 W AC adapter | Internal | External AC adapter | External 65W | External | External | External |
Warranty Period (years) | 2 years | 3 years | 2 years | 2 years | 3 years | 2 years | 2 years | 2 years |
Connectivity(3) | ||||||||
Supported Network Protocols | IPv4/IPv6, CIFS/SMB, NFS, FTP, SFTP, HTTPS, SSH, iSCSI, SNMP | — | IPv4/IPv6, CIFS/SMB, NFS, FTP, SFTP, iSCSI, SNMP, HTTPS, SSH | CIFS/SMB, AFP, NFS v2/3/4, FTP, SFTP, TFTP, iSCSI, WebDAV | — | — | — | SMB/CIFS, NFS, AFP, FTP, WebDAV |
Link Aggregation Support | true | true | true | true | true | true | true | false |
USB Ports | 2 | 2 | 2 | 3 | 3 | 4 | 3 | 3 |
Storage & Capacity(4) | ||||||||
Maximum Raw Capacity (TB) | 88 TB | 88 TB | 144 TB | 44 TB | 48 TB | 120 TB | 88 TB | 60 TB |
Drive Bays | 4 | 4 | 6 | 2 | 2 | 4 | 2 | 2 |
RAID Support | TRAID, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, Single | Single, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 | Single, JBOD, RAID 0, 1, 5, 6, 10, TRAID, TRAID+ | JBOD, Single, RAID 0, RAID 1 | RAID 0, RAID 1, JBOD, Single | TRAID, TRAID+, RAID 0, 1, 5, 6, 10, JBOD, Single | RAID 0, 1, 5, 6, 10, JBOD, Single, TRAID, TRAID+ | RAID 0, RAID 1, Single, TRAID |
Supported Drive Types | 3.5" SATA HDD, 2.5" SATA HDD, SATA SSD | 3.5"/2.5" SATA HDD/SSD | 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD | 3.5" SATA HDD, 2.5" SATA SSD | 3.5" and 2.5" SATA HDD/SSD | SATA III | 3.5" SATA HDD, 2.5" SATA HDD, SATA SSD | 3.5" SATA HDD, 2.5" SATA HDD, SSD |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the F4-424 Pro for its unmatched CPU power, abundant DDR5 memory, and advanced media capabilities such as 4K 60 fps transcoding with AV1 support. The dual M.2 slots and TRAID flexibility are highlighted as strong differentiators, while the plastic enclosure, lack of 10 GbE, and limited physical security features are noted as drawbacks.
Everyday users appreciate the fast performance, smooth 4K streaming, and the convenience of NVMe caching, often noting the ample RAM as a major plus. Recurring complaints focus on the non-upgradable memory, the cheap-feel plastic chassis, and the missing front USB and security lock.
“high-performance design for intensive tasks like video editing”
“up to 590 MB/s read and 555 MB/s write speeds”
“smooth 4K streaming and transcoding”
Choose the TS-216G-US for budget-friendly home use with AI features; opt for the AS5402T if you need dual 2.5 GbE, M.2 caching, and higher performance.
QNAP is better for users who value a mature UI and app catalog, while TerraMaster excels for those needing high-speed NVMe caching and dual 5 GbE.
Professional reviewers rate the AS6704T extremely highly, with PCMag giving it a perfect 5.0/5.0 "Exemplary" score for its blazing speeds, robust hardware and extensive app library.
Everyday users love the AS6704T's raw performance, flexible M.2 and 2.5 GbE options, and the breadth of apps that let them run Plex, Docker and VMs with ease.
Professional reviewers praise the F6-424 for its powerful Intel N95 processor, dual 2.5 GbE networking and flexible RAID options, noting that it delivers enterprise-level performance at a mid-range price. However, they caution that the base 8 GB of RAM and the less-polished TOS UI may require upgrades or adjustments for power users.
Everyday users appreciate the easy, tool-free drive installation and the smooth 4K media playback via Plex, but many report that the device can lag under heavy multi-user scenarios and wish for more RAM out of the box. The size of the chassis also draws mixed feedback.
Professional reviewers, led by PCMag, rate the TS-216G-US highly for delivering solid 2.5 GbE performance, a rich feature set, and easy configuration at a budget price. They commend its AI capabilities and snapshot security, but note the lack of dual 2.5 GbE ports, M.2 slots, and expandable memory as drawbacks.
Everyday users praise the device for its quiet operation, small footprint, and hassle-free setup, highlighting the intuitive QTS UI and reliable performance for home media and file backup. Complaints are minimal in the provided data, focusing mainly on the absence of included drives.
Professional reviewers award it Editors' Choice for speed and expandability, noting the lack of RAID 5/6 and plastic housing as minor drawbacks.
Users praise the fast 4K streaming, M.2 flexibility and quiet design, while complaining about missing RAID 5 and the plastic exterior.
Reviewers praise the powerful Intel CPU, generous DDR5 memory and dual 5 GbE ports, but criticize the dated TOS interface, lack of PCIe expansion and limited HDMI functionality.
Users love the silent operation, strong RAM for Docker/VMs and hardware transcoding, while common complaints revolve around the unusable HDMI port, UI clunkiness and desire for faster PCIe 4.0 NVMe slots.
Professional reviewers commend the F2-425 Plus for its hardware-forward design, noting the rare triple M.2 slots, dual 5 GbE ports and strong Intel CPU as standout features that deliver fast file transfers and reliable 4K/8K transcoding. However, they consistently point out the modest TOS app ecosystem and less polished UI as the main drawbacks that keep it from being a market leader.
Everyday users appreciate the straightforward setup, quiet operation, rapid file transfers and the convenience of HDMI output for media playback. The most common complaints revolve around the limited app selection and a UI that feels less refined than competing platforms.
Professional reviewers from TechRadar, AppleInsider and Impulse Gamer commend the F2-425 for its powerful Intel CPU, fast 2.5 GbE networking, tool-free drive bays and robust media-server features, positioning it as a standout in the 2-bay segment. They also note drawbacks such as the plastic chassis, a steep learning curve with the TOS UI, lack of link aggregation and occasional performance dips when multitasking heavily.
Everyday users appreciate the NAS for effortless 4K Plex/Jellyfin streaming, quiet operation, easy setup and the ability to run Docker containers like Pi-hole. Common complaints revolve around the clunky TOS interface and system sluggishness during large file copies, with several users wishing for a more polished UI and better multitasking performance.
