2-Bay vs 8-Bay NAS Devices in 2026: Key Differences
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You are comparing 2-Bay vs 8-Bay network attached storage to find the right fit for your data needs. Both Buffalo and QNAP devices provide centralized storage for your files. The main difference lies in capacity and expansion. The Buffalo unit offers a compact, plug-and-play experience with included drives. The QNAP model provides significant raw power and flexibility for advanced users. You must choose based on your current storage volume and future growth plans.
Key differences
| Aspect | Buffalo LinkStation 220 4TB 2-Bay NAS | QNAP TS-673-4G 8-Bay NAS |
|---|---|---|
| Number of Bays | 2-Bay | 8-Bay |
| RAM Capacity | not listed | 4GB RAM |
| Processor | not listed | Quad-Core AMD R-Series |
| Included Storage | 4TB | not listed |
| Weight | 1 pounds | 12.3 pounds |
Which one should you choose?
Choose Buffalo LinkStation 220 4TB 2-Bay NAS if
- You need a simple, pre-configured setup with included drives for home use.
- You prefer a compact device that weighs only 1 pound.
- You want a closed system focused on basic file sharing and backup.
Choose QNAP TS-673-4G 8-Bay NAS if
- You require high expandability with eight drive bays.
- You need 4GB of RAM for running virtualization or containerized apps.
- You want to add 10GbE networking or GPU acceleration via PCIe slots.
Verdict: The Buffalo LinkStation 220 is the practical choice for home users who want immediate, hassle-free storage with included drives. The QNAP TS-673-4G suits power users who need raw processing power, RAM, and extensive expansion options for complex tasks.
2-Bay vs 8-Bay NAS Comparison
Number of Bays
The Buffalo LinkStation 220 is a 2-Bay NAS, designed for users who need basic storage with minimal complexity. It includes two 2TB drives, offering a compact footprint suitable for home offices or small apartments. In contrast, the QNAP TS-673-4G features 8 drive bays, accommodating six 2.5-inch or 3.5-inch drives plus two M.2 SSD slots. This configuration allows for significantly higher capacity and flexibility. If you require extensive storage for large media libraries or multiple users, the 8-Bay model provides the physical space to grow. The 2-Bay unit is ideal for those with limited space or modest data needs.
RAM Capacity
RAM plays a critical role in handling concurrent requests and running applications efficiently. The QNAP TS-673-4G comes equipped with 4GB of DDR4 RAM, which supports virtualization, containerized apps, and faster file access. This memory allows the system to manage more complex tasks without slowing down. The Buffalo LinkStation 220 does not list a specific RAM capacity in its published specifications. This absence suggests it relies on simpler, less resource-intensive operations typical of entry-level devices. For users running multiple services or heavy workloads, the QNAP’s defined memory offers a clear advantage in performance and stability.
Processor Cores
Processing power determines how quickly your NAS can handle data transfers and application tasks. The QNAP TS-673-4G utilizes an AMD R-Series Quad-core processor running at 2.1GHz. This multi-core architecture enables efficient multitasking, including 4K video transcoding and running various server applications simultaneously. The Buffalo LinkStation 220 does not specify its processor type or core count in the provided data. Without this information, it is likely designed for basic file storage and sharing rather than intensive computing. If you plan to use your NAS for media streaming or virtual machines, the QNAP’s quad-core chip provides superior computational capability.
RAID Support
RAID configurations protect your data and determine usable storage space. The Buffalo LinkStation 220 supports RAID 0 and RAID 1. RAID 1 mirrors your data across both drives, providing automatic backup and redundancy, though you only get 2TB of usable space from the included 4TB. RAID 0 stripes data for maximum speed but offers no redundancy. The QNAP TS-673-4G supports scalable storage pools and RAID configurations suitable for its 8 bays, allowing for complex redundancy and capacity expansion. While the Buffalo offers simple, out-of-the-box RAID 1 protection, the QNAP provides more advanced options for data safety and growth in larger setups.
Network Connectivity
Network ports affect how fast you can transfer files across your local network. The QNAP TS-673-4G includes four 1GbE LAN ports, offering improved bandwidth and the option for link aggregation to increase throughput. It also supports optional 10GbE PCIe expansion for even faster speeds. The Buffalo LinkStation 220 does not specify its network port count or speed in the provided data, though it is described as connecting to a router for shared storage. For users with high-speed home networks or those transferring large files frequently, the QNAP’s multiple gigabit ports provide a significant practical advantage in transfer rates and reliability.
Which NAS fits your storage needs?
Home users wanting simple, secure backup
The Buffalo LinkStation 220 offers a closed system to reduce vulnerabilities from third-party apps. It includes SSL encryption for secure file transfers and automated backups via NAS Navigator. You get 4TB of total capacity in a compact 1-pound device, making it ideal for basic home storage without complex setup.
Users needing high capacity and expansion
The QNAP TS-673-4G provides eight drive bays for massive storage scalability. It features a quad-core AMD processor and 4GB of RAM for handling virtualization and containerized apps. With four 1GbE ports and PCIe slots for 10GbE expansion, it supports disaster recovery and centralized storage for larger data workflows.
Creators requiring media transcoding power
This QNAP model supports NVIDIA GeForce GT1030 graphics cards for 4K video transcoding. Dual M.2 SSD slots allow you to set up caching or storage pools, improving file access efficiency. The robust hardware handles multimedia tasks better than entry-level units, ensuring smooth performance for media-heavy environments.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Buffalo LinkStation 220 4TB 2-Bay NAS | Home users needing secure, simple 2-bay storage | Check price of Buffalo LinkStation 220 4TB 2-Bay NAS on Amazon |
| 2 | QNAP TS-673-4G 8-Bay NAS | High-capacity storage and media servers | Check price of QNAP TS-673-4G 8-Bay NAS on Amazon |
The products compared
Buffalo LinkStation 220 4TB 2-Bay NAS
Best for: Home users needing secure, simple 2-bay storage
- Number of Bays
- 2-Bay (what this guide is about)
- Drive Bays
- 2-Bay
- Included Storage
- 4TB
- RAID Support
- RAID 0, RAID 1
- Intended Use
- Home Users
- Dimensions
- 5.04 × 10 × 8.82 inches
View on Amazon: Buffalo LinkStation 220 4TB 2-Bay NAS Affiliate link
The BUFFALO LinkStation 220 is a 2-bay NAS designed for home users seeking centralized storage. It includes 4TB of pre-installed hard drives, offering 2TB usable space in RAID 1 or 4TB in RAID 0. The device connects to your router for shared access across Windows and macOS 15 and earlier. It features SSL encryption and a closed system to enhance security. This unit serves as a subscription-free personal cloud for backing up multiple computers.
Pros
- Includes 4TB of storage with 2-bay configuration
- Supports RAID 0 and RAID 1 for data redundancy
- SSL encryption for secure file transfers
- Closed system reduces third-party vulnerabilities
Cons
- Limited to macOS 15 and earlier compatibility
- 2TB usable capacity in default RAID 1 mode
- No mention of mobile app support for iOS
Good fit if
- You need a simple, pre-configured storage solution for home use
- You want RAID 1 redundancy with included drives
- You primarily use Windows or macOS 15 and earlier
Skip if
- You require macOS 26 compatibility
- You need more than 4TB of total storage
- You want to expand capacity beyond 4TB without buying new drives
Verdict: BUFFALO LinkStation 220 4TB 2-Bay NAS is a practical entry-level option for home users who want a secure, ready-to-use NAS with included drives and basic RAID protection. It suits those who do not need advanced macOS 26 support or high-capacity expansion.
QNAP TS-673-4G 8-Bay NAS
Best for: High-capacity storage and media servers
- Number of Bays
- 8-Bay (what this guide is about)
- Drive Bays
- 6 Bay
- Network Connectivity
- 4x GbE LAN
- RAM Capacity
- 4GB DDR4
- M.2 NVMe Slots
- 2 slots
- Processor Cores
- Quad-Core
View on Amazon: QNAP TS-673-4G 8-Bay NAS Affiliate link
This 8-bay NAS from QNAP houses six 3.5-inch drives and two M.2 SSDs. It runs on a quad-core AMD processor with 4GB of RAM. You get four Gigabit Ethernet ports for reliable connectivity. The unit also supports NVIDIA graphics for 4K transcoding. This setup suits users needing high capacity and expansion options for virtualization or media servers.
Pros
- Eight drive bays for large storage pools
- Dual M.2 slots for caching or storage
- Quad-core AMD processor with 4GB RAM
- Supports NVIDIA GPU for 4K transcoding
- Four Gigabit Ethernet ports included
Cons
- Limited to 4GB RAM in this configuration
- Base network speed is 1GbE only
- Heavy and bulky at 12.3 pounds
Good fit if
- You need maximum drive capacity
- You require hardware transcoding for media
- You want PCIe expansion slots
Skip if
- You need more than 4GB RAM
- You require 10GbE connectivity out of the box
- You prefer a compact desktop unit
Verdict: QNAP TS-673-4G 8-Bay NAS offers robust storage and expansion for power users. It fits those building a dedicated media or virtualization server.
Specifications side by side
| Spec | Buffalo LinkStation 220 4TB 2-Bay NAS | QNAP TS-673-4G 8-Bay NAS |
|---|---|---|
| Drive Bays | 2-Bay | 6 Bay |
| Network Connectivity | not stated | 4x GbE LAN |
| RAM Capacity | not stated | 4GB DDR4 |
| M.2 NVMe Slots | not stated | 2 slots |
| Included Storage | 4TB | not stated |
| RAID Support | RAID 0, RAID 1 | not stated |
| Number of Bays | 2-Bay | 8-Bay |
| Processor Cores | not stated | Quad-Core |
| Intended Use | Home Users | not stated |
| Dimensions | 5.04 × 10 × 8.82 inches | 11 × 10.4 × 7.41 inches |
| Weight | 1 pounds | 12.3 pounds |
| Size | 4TB (2x2TB) | 4GB RAM |
| Color | Black | Black |
| Model | LS220D0402 | TS-673-4G-US |
Frequently asked questions
Is a 2-bay NAS enough for home backup?
Yes, a 2-bay NAS is sufficient for most home users who need simple, secure storage. The Buffalo LinkStation 220 provides 4TB of capacity with included drives. It offers basic RAID protection and automated backups via NAS Navigator, making it a practical entry-level choice for small families or home offices without complex needs.
Can an 8-bay NAS handle media servers?
An 8-bay NAS is well-suited for dedicated media servers due to its high capacity and processing power. The QNAP TS-673-4G features a quad-core processor and 4GB of RAM. These specs allow it to manage multiple streams and large libraries efficiently, making it ideal for power users building a robust media or virtualization server.
What is the size difference between 2-bay and 8-bay units?
There is a significant physical size difference between these two form factors. The 2-bay Buffalo unit measures 10 by 5 by 8.82 inches and weighs 1 pound. In contrast, the 8-bay QNAP model is larger, measuring 10.4 by 11 by 7.41 inches and weighing 12.3 pounds, requiring more desk or rack space.
Does a 2-bay NAS support advanced apps?
The 2-bay Buffalo LinkStation 220 is designed as a closed system to reduce vulnerabilities from third-party applications. It focuses on secure, ready-to-use functionality rather than advanced app ecosystems. This approach suits users who prioritize simplicity and security over the ability to install numerous plugins or run complex virtualization tasks on their storage device.
How much RAM does an 8-bay NAS typically have?
High-capacity 8-bay NAS devices often include more memory to handle intensive tasks. The QNAP TS-673-4G comes equipped with 4GB of RAM. This additional memory supports its quad-core processor, enabling smoother performance for media transcoding, virtualization, and managing large files compared to entry-level models with less memory.
Is a 2-bay NAS good for macOS users?
The Buffalo LinkStation 220 is a practical option for users who do not require advanced macOS 26 support. It provides a straightforward, plug-and-play experience that integrates easily with home networks. If you need basic file sharing and backup without complex configuration or specific high-end OS compatibility features, this 2-bay unit is a suitable choice.
What connectivity do 8-bay NAS devices offer?
The QNAP TS-673-4G utilizes 1GbE network connectivity to link with your local area network. This standard Ethernet connection ensures reliable data transfer speeds for most home and small business environments. While not the fastest option available, it provides a stable foundation for accessing your 8-bay storage array from multiple devices simultaneously.