This appliance replaces a Linux Samba server I was running. Much simpler, no hassle, much smaller footprint, and data redundancy.
What's not to like!
| Hard Drive | 24 TB |
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This Item  Asustor AS4002T | Personal Cloud | 1.6GHz Dual-Core, 2GB RAM DDR4, 10GbE Port | Network Attached Storage NAS (2-Bay Diskless) |  |  |  |  |  | |
| Price | Currently unavailable. | -9% $419.00 List: $459.00 | $369.00 | $249.99 | $296.99 | $189.99 |
| Delivery | — | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | — | Get it as soon as Friday, May 3 |
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| Sold By | — | A+NAS | BlueAlly | Amazon.com | Amazon.com | Amazon.com |
| size | — | 4 Bay | 2 Bay | DS223 | DS224+ | DS223j |
| hardware interface | scsi, solid state drive | hdmi, solid state drive | — | — | esata, pci, solid state drive | — |
| compatible devices | — | CPU | Laptop | Desktop, Laptop, Server, Smart Phone | Laptop, Smart Phone, Desktop | Desktop, Laptop, iPhone, Android |
| weight | 1.2 kilograms | — | 5.84 pounds | 1280 grams | 1.3 kilograms | 0.87 kilograms |
Product Description
Enhanced dust prevention, cooling and stability
The AS40 series diamond-cut exterior has a magnetic cover for easy access to hard drives within. Its front panel hexagonal design creates a lightweight, yet strong frame for added durability and protection. The AS40 series also comes with a better cooling design, allowing for better airflow, allowing for higher longevity and lower failure rates.
Dual Core 64bit CPU and DDR4 RAM
The Marvell 64bit CPU found inside the AS40 series contains two cores clocked at 1.6Ghz powered by the ARM Cortex A72 microarchitecture. Compared with the Cortex-A15 core, the Cortex-A72 is three and a half times faster while providing seventy-five percent reduced power.
10gbps speeds
ASUSTOR’s AS40 series of NAS are the first line of consumer NAS made by ASUSTOR to feature 10gbps of bandwidth over Ethernet. Our 10gbps Ethernet port uses RJ45 which are different from SFP+ as it is more accessible to consumers, and flexible with different Ethernet speeds and standards.
- Equipped with Marvell ARMADA-7020 1.6GHz (Dual-Core) Processor
- Equipped with 2GB DDR4
- Hand screw design for toolless installation
- Dual gigabit Ethernet with the addition of a 10gbE port
Product feature
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10gbps speedsASUSTOR’s AS40 series of NAS are the first line of consumer NAS made by ASUSTOR to feature 10gbps of bandwidth over Ethernet. Our 10gbps Ethernet port uses RJ45 which are different from SFP+ as it is more accessible to consumers, and flexible with different Ethernet speeds and standards. |
PC-less Software InstallationMobile installation with AiMaster takes only 3 steps! Finding your NAS, system initialization and installation, power management, ADM firmware updates, system information and more are all available from the convenience of your mobile device at any time. |
Effortless Connections to Your NASADM 3.0 provides easy connections by supporting a new Internet Passthrough function that helps users to simplify previously complex router configurations. |
Intuitive User InterfaceUsing a NAS has never been easier. ADM's fresh and vibrant user interface features intuitive and familiar modern OS controls. With ASUSTOR NAS you'll never have to worry about a steep learning curve. |
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Downloading has never been this convenientSpending a lot of time fiddling with torrents, trackers and BitTorrent clients? Download Center provides a one stop solution that simplifies the entire download process. Powerful features allow you to easily search for and download the files that you need in the blink of an eye. The AiDownload mobile App allows you to use your mobile device to search, add and manage your download tasks while on the go. BitTorrent downloads have never been this convenient. |
Cross-Platform Multi-User AccessThe ASUSTOR NAS provides seamless cross-platform and multi-user access, allowing you to easily connect to your NAS from Windows, Mac OS X or Unix-like operating systems no matter if you are using a PC, notebook, tablet or smartphone. |
App CentralUnleash the unlimited potential of ASUSTOR NAS. The applications that come pre-installed with each ASUSTOR NAS device are just the beginning. At your convenience, you can browse through and download any applications that pique your interest from App Central. Whether your interests lie in business, website construction or even digital home entertainment, App Central has got you covered. With over 200 unique Apps, App Central provides you with the boundless variety of applications that you require to satisfy your digital lifestyle needs. |
Multi-Layered Protection from the Outside inASUSTOR NAS ensures data security by creating an in-depth data protection plan that protects your data from the outside in. Utilization of a multi-layered deployment scheme allows for the achievement of active network, system and data protection. |
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| AS3102T v2 | AS4002T | AS6302T | AS1002T v2 | |
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| CPU | Intel Celeron 1.6GHz Dual-Core (burst up to 2.48GHz) Processor | Marvell ARMADA-7020 1.6GHz (Dual-Core) Processor | Intel Celeron J3355 Dual-Core 2.0 GHz (burst up 2.5GHz) Processor | Marvell ARMADA-385 1.6GHz (Dual-Core) Processor |
| Memory | 2GB DDR3L (not expandable) | 2GB DDR4 (not expandable) | 2GB SO-DIMM DDR3L (1GB x2, Expandable. Max 8GB) | 512MB (not expandable) |
| HDD | 2 x SATA3 6Gb/s; 3.5" HDD | 2 x SATA3 6Gb/s; 3.5"/2.5" HDD/SSD | 2x HDD 2.5" / 3.5" SATA II/ III or SSD | 2 x SATA3 6Gb/s; 3.5" HDD |
| Expansion | USB 3.0 x 3 | USB 3.1 Gen-1 x2 | USB 3.0 x 4 (Type A x3, Type C x1) | USB 3.0 x 2 |
| Network | Gigabit Ethernet x 2 | Gigabit Ethernet x 2; 10Gigabit Ethernet x1 | Gigabit Ethernet x 2; 10Gigabit Ethernet x1 | Gigabit Ethernet x 1 |
| Expansion | USB 3.0 x 3 | USB 3.1 Gen-1 x2 | USB 3.0 x 4 (Type A x3, Type C x1) | USB 3.0 x 2 |
Reviews with images
Interesting unit, but some glitches out of the box
This is my third Asustor NAS unit. I also have an AS3102T (dual-core Intel) and AS3202T (quad core Intel) for comparison.The new AS4002T, a dual-core, non-Intel unit with a new Marvell ARM Cortex processor at 1.6 GHz. It also has 2 GB of 2400 MHz DDR4 RAM and three LAN ports - two Gigabit ports and a third, 10 Gigabit port.Asustor nicely includes not one but THREE ethernet cables in the box - two Cat 5e cables and one Cat 6e. I have never seen any manufacturer put three ethernet cables in the box before - most give you just one, even if they have dual ports.There area few benefits to the 4002T unit over the 3000-series versions:1. A more rigid case design2. The 4002 has a removable, magnetic front panel that covers user-accessible drive bays that are hot swappable (you have to remove the cover for the 300-series units and the drives are screwed in and are not hot-swappable)3. The 4002's drive bays are tool-less; the drives are secured by plastic drive rails that snap along the sides of the drive caddies very similar to what QNAP does in the TS 128/228 series. No screws.4. The 4002 has two Gb ethernet ports and one 10 Gb port. All three can be combined in various combinations for link aggregation in Asustor's operating system.Interestingly, the new V2 version of the lower-level AS3102T now has dual ethernet ports, but there is as of yet no V2 version of the higher-end AS3202T, so you're stuck with the single Gb port on that one.There are several negatives to the 4002 relative to the 3000-series NASes:1. The 4002 is more expensive than either the 3102 or 3202, yet has an inferior processor (but faster memory).2. The 4002 takes significantly longer to boot up/restart3. the 4002 runs hotter than the quad-core Intel 3202 and much hotter than the Intel dual-core 3102.4. I have had to reset the AS4002T several times due to issues - more on that below, none of which I have seen at all in either my AS3102T or AS3202T.When I first my 4002 up, I tried using the Cat 6e cable using the 10 Gb port. Asustor's Control Center utility immediately found the new NAS and I was able to start setup, but it hung at the "system volume" phase at 11% and would not move from there. I closed and reopened my browser, tried to reinitialize, and it stopped there. I then disconnected from the 10 Gb port and used the two 1 Gb ports instead, and initialization completed very quickly with no issues. I thought the 10 Gb port would work even if connected to a Gb network, but it wouldn't.I initially installed two 4 TB WD Red drives. I had checked both drives before this issue in a dock on my Windows computer and they showed healthy with no issues. Within a couple hours, I started getting "system failure" messages and the second HD light on the case was blinking amber while the first HD was green. I ran Dr Asustor and it aid my second hard drive was unstable. I went into the Smart data and it showed Current Pending Sector errors. I tested this drive in my dock with SeaTools and it now shows failing. I pulled the drive and replaced it with the only other 4TB drive I had available, a healthy WD blue drive. Was fine for a day and same issue cropped up - again only drive 2. This one, however, shows the RAID1 status as "good" with the SMART status as "Bad". The Red drive I used earlier showed a compromised RAID and degraded status. I just pulled it, tested it in my dock, and it, too, shows failing. Interestingly, both failed drives show the same SMART errors.The Red drive in bay 1 has been fine the whole time.Strange that two previously perfectly good drives failed after being put into bay 2 in this NAS within a day or so. Can't say it's the NAS but seems strangely coincidental.I ordered and just got two Seagate Constellations, which I will try and I'll reinitialize the NAS with them installed. Fortunately they were pretty cheap so not out a lot of money if something happens. I have Seagate desktop drives in my 3202 and WD Reds in my 3102 and no issues in either one after many months.Constellations are in and the system is up and running with no issues so far. Will update later if things change.
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Reviewed in the United States on April 20, 2019
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Reviewed in the United States on October 15, 2020
