Brand | Asustor |
---|---|
Item Model Number | AS4004T |
Hardware Platform | Mac |
Product Dimensions | 21.39 x 32.26 x 23.67 cm; 2.2 Kilograms |
Item Dimensions L x W x H | 21.4 x 32.3 x 23.7 centimetres |
Processor Count | 2 |
Item Weight | 2.2 kg |
Manufacturer | ASUSTOR |
ASIN | B07BS5LZ97 |
Is Discontinued By Manufacturer | No |
Date First Available | 26 August 2018 |
Asustor AS4004T | Personal Cloud | 1.6GHz Dual-Core, 2GB RAM DDR4, 10GbE Port | Network Attached Storage NAS (4-Bay Diskless)
- TIER – Entry-level home / personal 4-bay NAS for storage and multimedia with 1.6GHz Dual-Core processor and 2GB DDR4 RAM. This NAS packs a power performance with up to 1146MB/s read and 584MB/s write speed.
- FEATURES – Asustor Backup Plan allows you to automatically schedule a backup of your data from any PC or MAC to your NAS. Asustor EZ-Connect allows you to connect to your NAS remotely from any computer or mobile phone. Asustor EZ-Sync turns your NAS into a real-time file syncing personal cloud space with file versioning.
- APPS – Over 200+ free unique apps for any home or business use. The apps offered cover a wide range of utility and features such as: server backup, cloud backup, anti-virus, media server, photo syncing, music and video streaming.
- FREE – Asustor offers 4 free IP camera licenses with all their NAS products. IP camera licenses can be used to setup IP cameras on your NAS for your home or business NVR / surveillance center without having to pay any service or monthly fees.
- WARRANTY – Asustor offers the best 3-year NAS warranty in the market. Asustor will repair or replace any unit that is hardware damaged during the 3-year period so you can feel worry free when using any Asustor product.
Product Information
Technical Details
Additional Information
Customer Reviews |
4.4 out of 5 stars |
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Warranty & Support
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Product description
A new look! Enhanced dust prevention, cooling and stability.C> 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.Cpuc
marvell armada-7020 1.6GHz (dual-core) processor
memoryc
2gb DDR4 (not expandable)
hddc
4 x SATA3 6GB/ s, 3.5/ 2.5 HDD/ ssd
expansionc
usb 3.1 gen-1 x2
maximum drive bays with expansion unitc
12
power consumption.5W (operational> 17.1W (disk hibernation)software and featuresc
operating systemc
adm 3.1 onwards
supports online firmware updatessupported osc
windows XP, Vista, 7, 8, 10, Server 2003, Server 2008, Server 2012
mac OS X 10.6 onwards
unix, Linux, and supported browsersc
internet explore 11 onwards
firefox
chrome
safari
microsoft edge network protocolsc
cifs/ SMB, SMB 2.0/ 3.0, AFP, NFS, FTP (Unicode supported), TFTP, WebDAV, Resync, SSH, SFTP, iSCSI/ IP-SAN, HTTP, HTTPS, proxy, SNMP, syslogfile systemc
internal disk: ext4
external disk: FAT32, NTFS, EXT3, EXT4, HFS+, exfatiscsi read/ write (5GB file, 1GbE x 1)/ ip-sanc
maximum targets: 64
maximum LUNs: 64
maximum snapshot versions of a single LUN: 256
target masking
lun mapping
iso file mounting
supports mpio
persistent (SCSI-3) reservationscustomized sign in pagec
2 different TEMPLATE choices
customizable title, image and background
image import function disk managementc
scheduled Bad Block scans
scheduled s.M.A.R.Steel scansenergy controlc
configurable disk hibernation and sleep mode wait time
configurable time period for sleep mode activation
automatic sleepnetworkc
tcp/ IP (IPv4 and IPv6)
link AG...
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Customer reviews
Top reviews from other countries


Mine houses 4x 8TB WD reds. Building a raid5 partition took 30 hours. Filling the NAS to 75% took about as much time.
The raid5 works well, reads and writes as expected, very unlike the garbage windows storage pools I had set up on a PC before this.
My experiences with it are limited to using it as SMB and PLEX server, but for those tasks it does exceptionally well, as long as you don't need transcoding, which it can NOT do AT ALL. This is fine if your client infrastructure consists of PCs, laptops and Nvidia Shields, but as soon as you have a weaker TV or client device, that can get iffy.
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This is not the reason for just 4 stars though. My biggest bugbear is the fan control.
You have low, mid, high, and automatic. Automatic basically goes to mid. There is one degree Celsius difference between cranking it to high or having it on mid. Low however, lets the drives go up to 58°C on prolonged writes, like when you fill it with your movie collection, which is is a temp I don't really like my drives to reach.
Auto seems to have 60°C as target, which is a bit too much.
On idle and mid, the drives are at 37 to 39°C, on idle and low they're at 48°C.
If the system would let me set auto with a target temperature, or a temperature curve, that would be nice.
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The other, smaller issue is the noise it makes. The drivebays are plastic, and while the screw-less mounting mechanism basically pins the drives in with rubbery bits, there is still a lot of vibration going through the whole device, so much that I put a 1 pound weight on top of it, like I had to do for the longest time with a cheap Sony BluRay Player which would outright start to buzz from the spinning of the disk while playing a movie. This keeps the vibrations from buzzing.
I don't quite know what Asustor could have done to prevent this, other than making the device out of sturdier material, but it is undeniably noisier than I expected. As it is now, it has its spot in the vestibule, and certainly not in the movie or bed room.
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The last issue is software related. Even with no clients running that could keep the SMB or PLEX servers up, the device keeps the drives - which are set to idle after 30 minutes - spinning for hours doing... something. There are no processes not idle that would stick out, and I yet have to find any option that I might have left on anywhere that would keep the drives busy. PLEX has everything archive related switched off.
Maybe I'll find the reason for that sometime. As of now, the box isn't as "set and forget" as I wanted it to be.
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All in all though, for a 350 € purchase, this cute and fashionable box gives little to regret, and it does its job very well. It will likely still be replaced by a device that can transcode, but that has less to do with it and more to do with the internet situation of a certain remote client being too flaky to get a proper 8mbit stream in any reliable fashion.

It supports using iSCSI LUNs on your local machine so the NAS can appear as a local drive to Windows.
I can't quite max out the 10GbE connection with fast conventional hard drives (spinning rust), but 800MB/s on sequential reads is close to 7-8 times faster than standard gigabit so I'm happy enough with that. RAID5 Write speeds are limited by the ARM CPU on the NAS.
[update]
I replaced one of the HGST 6TB NAS drives in the array because the AS4004T reported some bad S.M.A.R.T. data on it and unusually high temperatures compared to the other drives (something that the old Drobo they were in completely missed), and rebuilding the 16.3TB volume took a just under 12hrs. That CPU on the NAS was up in the 90% utilization range the whole time, but that's still the fastest I've ever seen a large capacity RAID rebuild.

Reviewed in Canada on 10 July 2020
It supports using iSCSI LUNs on your local machine so the NAS can appear as a local drive to Windows.
I can't quite max out the 10GbE connection with fast conventional hard drives (spinning rust), but 800MB/s on sequential reads is close to 7-8 times faster than standard gigabit so I'm happy enough with that. RAID5 Write speeds are limited by the ARM CPU on the NAS.
[update]
I replaced one of the HGST 6TB NAS drives in the array because the AS4004T reported some bad S.M.A.R.T. data on it and unusually high temperatures compared to the other drives (something that the old Drobo they were in completely missed), and rebuilding the 16.3TB volume took a just under 12hrs. That CPU on the NAS was up in the 90% utilization range the whole time, but that's still the fastest I've ever seen a large capacity RAID rebuild.


