What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Choose direct-attached storage (DAS) for simple extra storage or a manually managed backup for one computer. Choose network-attached storage (NAS) when several devices or people need a shared central file store, or when you want configurable network-based backup workflows. Neither replaces a separate backup: RAID can help with availability after some drive failures, but it is not a backup.
What is the difference between NAS and DAS?
DAS connects directly to a computer, most often through USB. The computer using the drive is its host; other computers on the network cannot access the DAS drive directly. To share it over a network, the host computer or a NAS must provide that sharing function, and the host must remain available and be configured correctly. Western Digital explains the direct-connection distinction.
A NAS connects to a network and makes storage available to devices through network services. Depending on the model and configuration, it may support shared folders, user permissions, backup applications, snapshots, and remote access. Synology’s DSM file-service guidance documents services including SMB, NFS, FTP, and WebDAV; check the specific NAS model and software version for supported protocols and features.
Which setup fits your needs?
| Need | Likely fit | What to consider |
|---|---|---|
| Extra storage for one desktop or laptop | DAS | Confirm the computer has a compatible port and that the drive’s format and capacity meet your needs. |
| A copy of one computer’s files | DAS or NAS | An external drive can be a straightforward backup target. A NAS may support scheduled or versioned workflows. Choose based on automation, recovery needs, backup software, and who needs access. |
| Shared folders for household devices or a small team | NAS | Check client and protocol support, permissions, network speed, and whether remote access is supported and configured as needed. |
| Centralized backups from multiple devices | NAS | Verify that the NAS backup software supports each client and that its version history, snapshots, and offsite-copy options match your recovery needs. |
| A separate recovery copy | Either can be a destination | A USB DAS drive may serve as a backup destination on supported NAS models. Follow the device’s instructions and eject the drive safely before unplugging it. |
How to compare backup, access, and recovery
Who needs access?
If one computer needs the storage, DAS avoids the network-sharing setup. If several devices or people need the same files, NAS is designed to make storage available over the network, subject to the chosen model, protocols, permissions, and network configuration.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problems#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
How will backups run?
Compare manual copying with scheduled or automated jobs, whether previous file versions are retained, which devices the software supports, and how you would restore files. A NAS can centralize backup workflows, but its applications and client coverage vary; verify support for your particular devices before relying on it.
What failure are you protecting against?
RAID may keep some systems available after certain disk failures, depending on the implementation, but it does not replace an independent backup. A NAS can fail, lose disks, or be misconfigured. Synology’s backup guidance recommends the 3-2-1 approach: three copies of data, on two storage mediums, with one copy offsite. It also warns that RAID crashes and hard-drive failures can still cause data loss.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Synology lists Hyper Backup, Snapshot Replication, Active Backup for Business, USB Copy, and Cloud Sync as possible parts of a data-protection setup. Their availability and suitability depend on the system and use case. For important files, keep another copy on separate media and in an offsite or otherwise separately protected location appropriate to your data.
How much capacity and expansion do you need?
Compare usable capacity rather than just the sum of the installed drives. For a NAS, check bay count, supported drive sizes, and expansion options on the specific model. For DAS, check the capacity and connection options of the drive or enclosure you plan to use.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
What speed do you actually need?
There is no universal rule that NAS or DAS is faster. Performance depends on the drive, enclosure, host interface, Ethernet or Wi-Fi connection, and workload. Match the complete setup to your actual file sizes and use pattern rather than choosing by category alone.
What is the total cost and maintenance burden?
Account for the enclosure and drives, any network upgrades, power, separate backup media, software, and the time required to configure and maintain the system. Comparable current prices are not established here, so compare specific configurations rather than assuming either category is cheaper.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Can other computers access a DAS drive?
Not directly just because it is connected to one computer. To make that drive accessible to other computers, the connected computer or a NAS has to share or host it over the network. That introduces a dependency on the host and its configuration. A NAS provides network storage services itself, though its access still depends on compatible clients and correct setup.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can a USB DAS drive back up a NAS?
Some NAS systems support a USB drive as a backup destination. Seagate’s Business Storage 2-Bay NAS manual documents this workflow for its particular system and instructs users to eject the drive before disconnecting it to avoid filesystem damage. Do not assume every NAS supports the same procedure; consult the instructions for the model you own.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
What should you check before choosing hardware?
- For a NAS enclosure: match drive bays and capacity to current and future needs; verify client backup support, network ports, drive compatibility, software support lifetime, security updates, and remote-access design.
- For an external USB drive: match its connector and capacity to the host computer, and plan for safe ejection and another copy of important data.
- For NAS-compatible internal drives: confirm compatibility against the NAS maker’s supported-drive information for your specific enclosure.
- For either setup: decide where the independent recovery copy will live and how you will restore from it.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
