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SAMSUNG D3 Station 4TB USB 3.0 3.5
  • Verified Owner
  • Owned For: 1 month to 1 year

1 out of 5 eggs Samsung D3 4TB Ext. HDD - Update, Drives Failing! 01/20/2015

This review is from: SAMSUNG D3 Station 4TB USB 3.0 3.5" Desktop External Hard Drive STSHX-D401TDB Black

Pros: - Low Price on Sale
- Large Capacity.

Cons: - 50% Failure Rate after 6 Months Use!!
- Drive Enclosures are not as Sturdy as Seagate Enclosures.
- Drive Read/Write Speed is Less than Equivalent Seagate Enclosures.
- No Heat Sink in HDD Enclosure.

Other Thoughts: These Samsung D3 External HDD Enclosures have Seagate 4TB HDD in them. I had previously written a review of these enclosures when I had them for less than a month in use. I purchased Eight of these 4TB drives because I thought they were a great deal at US$109/each. When I first purchased these drives, my testing indicated that they were slower than the equivalent Seagate Expansion HDD Enclosures and that the enclosures were less sturdy but I gave them 4 eggs.

I have encountered Two Major problems that make these Samsung D3 HDD's completely unacceptable for use.

First is that the drives drop connection to the server/client PC when I was attempting to back up drives to these external drives. I was never able to write more than about 100GB worth of data to the drive at any one time without the Samsung drive dropping out. I would have to unplug the drive and re-plug it in to have the drive recognized by the network. Using these Samsung D3 HDD Enclosures to back up storage drives was impossible for me.

At the 6 month mark, these drives have started to fail catastrophically. By that I mean that the drives will just stop and drop off the network and fail to be recognized, or anything else. All the data on the drive is lost. I took a drive that failed out of the enclosure and mounted it into a server bay to see if it was just the enclosure driver board. Nothing. The drives were dead. So far, I have had 50% failure of these Samsung D3 4TB HDD's.

Fortunately, I have backups (and backups of backups).

These are literally the first Seagate HDD's I have ever had fail. I have Seagate Enclosures purchased before and after these Samsung D3's. None of them have failed or give any indication of problems. I purchased these drives in 3 separate lots to minimize the chance of failure from one particular batch/run of HDD's. All of them seem to have the problems.

This is disconcerting, to say the least. I have only had problems with the Samsung D3 4TB Drives. I have a couple of the Samsung D3 3TB External Drives and those seem to be working fine. So Far.

In conclusion, The price of these Samsung D3 External 4TB HDD made them very attractive, especially if you are purchasing quite a few. The high failure rate and dropping out when transferring lots of data make them completely unacceptable as storage media.

Spend the extra US$20 and buy real Seagate HDD's and Enclosures or spend US$30-US$40 more and buy Hitachi or WD drives. It is definitely worth it to buy better drives if it saves you the hassle of having to fix a bunch of failing drives and worrying whether you have got everything backed up immediately on multiple drives.

I will not be buying Samsung HDD's again.

SAMSUNG D3 Station 4TB USB 3.0 3.5
  • Verified Owner
  • Owned For: 1 month to 1 year

4 out of 5 eggs Samsung D3 4TB USB3.0 Ext HDD STSHX-D401TDB 11/25/2014

This review is from: SAMSUNG D3 Station 4TB USB 3.0 3.5" Desktop External Hard Drive STSHX-D401TDB Black

Pros: - Low Cost.
- Quiet
- Reliable
- Large Capacity
- 3 Year Warranty
- USB 3.0

Cons: - Not the fastest External HDD available.
- Difficult to remove the outer case without damage to the case.

Other Thoughts: These Samsung 4TB drives were on sale for the lowest cost I could get 4TB HDD's of any kind. The internal drives are Seagate 4TB 5900rpm drives and they came with a 3 year warranty. I normally buy Seagate drives and have been very happy with them (I own more than 20) for reliability and longevity. Seagate only offers a 2 year warranty on their External HDD's so I bought the Samsung version instead.

I do not use the included backup software by either Samsung or Seagate so I cannot speak to the quality or usability of that. I can only speak to the actual physical hardware.

I have eight of these Samsung D3 drives. Some are still in their original enclosures, some are in a NAS RAID array. I will say that the Samsung enclosure is different than the Seagate enclosure. The Seagate enclosure is more angularly rectangular with an internal metal heatsink and little space between the drive and the plastic enclosure walls. Samsung has a larger enclosure with no metal heatsink and rubber bumpers about 5mm thick to cushion the actual HDD in the enclosure. The Samsung enclosure is made to sit edgewise where the Seagate is made to sit flat. It is hard to say whether the Samsung has better heat management than the Seagate enclosure which I put on its side to be like the Samsung. The Samsung enclosure has better ventilation than the Seagate enclosure.

Performance wise, I believe that the Seagate enclosures are slightly faster than the Samsung enclosures based on direct comparisons between equivalent file transfer read/writes to both. The difference is no more than 10% and often less than 5% depending on the type and size of files being transferred.

If you take the HDD out of the enclosures (voiding the warranty) and put them in a server/PC/NAS, the drive performance is improved and the drive performance is the same whether it came out of a Samsung or Seagate enclosure.

I recommend these Samsung 4TB External HDD if you can get them on sale. I paid US$109 each for them at Newegg which was the lowest price I have seen to date for 4TB HDD's. So far, out of 10 drives purchased, I have had Zero DOA, Zero with Bad Sectors, and Zero with read/write failures or corruption. They seem to work good in a NAS RAID (RAID 1) configuration and I use them as drives in video servers where they are being read and written to every day and are running 24/7.

I gave the rating of 4 eggs because these drives in the Samsung enclosure are not as fast for read/write speed as the equivalent Seagate HDD enclosures.

Zmodo ZP-KE1H04-S 4CH NVR + 4 HD 720P Day/Night Outdoor sPoE IP Camera Smartphone Scan QR Code Quick Remote Access
  • Verified Owner
  • Owned For: 1 week to 1 month

Pros: - 4-720p cameras + a NVR recorder included in Kit.
- NVR has POE built in. No POE switch required.
- Cameras are Digital.
- Camera Resolution is better than analog cameras.
- Cost of Kit is Low compared to individual components.
- Strong IR Lights on Cameras.
- Cameras are Small.
- Cameras seem fairly sturdy.

Cons: - Camera Lens is too Wide Angle.
- Included CAT5 Cables are not Outdoor Rated.
- Instruction Manual is lacking information about URL to access setup.

Other Thoughts: I searched around extensively and this Zmodo 4-camera kit with NVR was the best deal for the quality of cameras and the included NVR that had integral POE.

The cameras themselves are very small and concealable. They appear to be fairly sturdy. The mounting flang is not that sturdy but should be adequate for the small cameras if you are not making adjustments constantly.

Software is included with the kit to monitor the cameras remotely. It also allows you to have all four recordings/cameras on the same screen. Setup of the software is fairly straightforward and easy to get started for the basics. When you need to change some parameters like the individual camera IP address (to assign an address so you can do port forwarding in your router for remote access), is when things get a little more complicated. The documentation has to be downloaded from the web (as does the software) and it is not at all complete. Other people use after-market software like BlueIris for their system. You might want to check that out if you are not happy with the software included.

The cameras themselves have a 2.8mm focal length lens which provides for a 90 degree FOV. This is very good if you are recording an indoor scene like a short hallway and do not need to observe at a longer distance. These cameras work very good for recording at distances up to approximately 7-8 meters. Distances greater than that contain too much information and resolution suffers. The lens of these cameras is not the best also. There is more distortion and "fish eye" effect on the outer 1/3 of the FOV. I would have preferred to have 4mm or longer focal length which would give better distance viewing and, probably, less distortion across the lens FOV.

The NVR is adequate for the task. I purchased the kit with no HDD included. The one that had a 1TB HDD was US$50-US$60 more. I had a spare 2TB HDD available so I simply reformated the drive and installed it in the NVR box. Simple.

I especially liked the fact that the NVR had POE included for all four incoming camera feed ports. The cost of purchasing a unmanaged switch with 4 POE ports would be half the cost of this whole kit. The kit had everything (except the HDD) you would need to get started, including the ethernet cables.

In conclusion, I have recommended this Zmodo 4-camera kit to all my friends, relatives and clients who want to install a basic surveillance system. It works best for shorter, interior work but can perform adequately to monitor outside doors and approaches to entrances. For longer distance surveillance work I would recommend getting cameras with variable focus lenses or a longer set focal distance lens (4mm -7mm for intermediate distances).

It is very difficult to find a better value for the money than this Zmodo kit.


R T.'s Profile

Display Name: R T.

Date Joined: 01/11/12


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  • Reviews: 93
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  • First Review: 01/17/12
  • Last Review: 01/27/15
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