Hello everyone! I saw that there is a review of the DS920 + here and I wanted to share with you my comprehensive review after several months of using the cheaper model - the DS420 +, and also add a brief comparison between it and the qnap ts-453d which is actually the previous server I had. First of all, what is a NAS? NAS is a shared computer whose sole purpose is to give access to your information to the family, or even to anyone you want in the world with the permission you define. It's safe, fast, and not dependent on the Internet, and if you're really dedicated (but really!) Dedicated hardware to work, and a bonus - for some types (which include the DS420 +) you can do a lot more than just file storage. Specification Before we explain what is new we will explain in general what exists in this world. The vast majority of NAS servers are not satisfied with connecting a single hard disk, for two reasons - the first is to upgrade future volume easily and the second is to reduce the risk of information loss if one disk crashes. A hard disk mechanical is a relatively inexpensive product in the storage world, but due to being mechanical it is not reliable enough to let it store for you all the sensitive information for a long time, so NAS servers are very common to see arrays of 2 or more disks that work in parallel for one backup. The second (a concept called RAID). The DS420 + boasts the option of connecting 4 discs, which is amazing for any home consumer, and definitely future proof for the vast majority of users. As for the rest of the specs, Synology went for a very solid and stable product, with features that were recently only for the more expensive series in the previous models: Processor - This is the most important thing in my opinion as it is the hardest work in any operation you perform beyond file sharing, a powerful processor opens the door For streaming movies through Plex, adding support for image processing and recognition, installing heavy applications such as live surveillance cameras and more. The processor here is a huge upgrade from the processor of the previous model (the DS418Play) and is an Intel Celeron J4025 dual-core processor, with a core speed of up to 2.9Mhz, a processor that will provide very much for most major uses in the home. RAM - There is 2GB of built-in DDR4 memory, which is more or less reasonable to use, and for those who want to go wild there is a possibility to expand to 6GB formally (informally showed that it can be expanded to much more, and your friends have already purchased 16GB of memory for testing, why? Because it's cheap) 2 LAN connections. Why 2? Because our information is important to us. The 2 connections enable both Fail Over and Link Aggregation operations. Simply put - the connections know how to work in parallel and with full backup in case one connection falls. In addition 2 connections give a lot of extra play to tools like a firewall in case you want to have some fun, or even a certain compartmentalization with VLANS in case you want to share sensitive information only to part of the house. 2 SSD connections M.2 2280 NVM - imparts insane caching capabilities - significantly improves performance for deterministic reading and writing (movies, videos, photos, etc.) I pampered my NAS by upgrading the company's 2 SSDs in the SNV3000 model, I'll see the improvement later In performance. NVMe M2 slots: Rear part: Front part: Box: Installation In this part I will divide the installation process into 2: Physically - it was necessary to connect the box to electricity, connect the disks (I put WD RED - the recommended series for NAS) to one of the 4 drawers available To the box, and it was necessary to connect the communication points to the network. Overall - simple to the ridiculous level. Programmatic - this is the icing on the cake. As a man who has done quite a bit in the field, I have set aside two days for this stage, because I know that a kinfog of a storage machine is one of the reasons for the plump salaries of storage people in the world. in practice? Took me between half an hour and an hour. Synology's user interface is amazing and accompanied me throughout the process, gave me the option to choose at most stages whether I am an "advanced" user or a "beginner" user by choosing the recommended parameters for myself. An insanely comfortable experience that ends up with a few Next buttons, and Checkboxes. After creating the first Storage Pool and Volume, all that is left is to choose your favorite sharing protocol (or several) - SMB, NFS, AFP, then give permissions to your devices and the story is over. Uses the corner of creativity. There are an infinity of things that can be done with a box that can provide up to 64Tra of data with a dedicated app store, from dedicated apps for users who like the "Install and Forget" method to installing Docker or Hypervisor with open source app servers for a little more daring users. In the "Install and Forget" department, I found a lot of very convenient solutions that the DS420 + ran very easily: Synology Photos - a new application is coming out soon with DSM7, this is an application that is similar in behavior to Google Photos, only that it is managed at home. There are currently 2 apps designed for this purpose - Moments and Photos Station and in the near future should be merged into the new app. The application allows storage of automatic upload of photos from the phone, face recognition, indexing by location, date, tags, etc. Significant benefits from Google Photos are first of all the upload quality - if you have not noticed, Google reduces the image quality if you want unlimited volume, and if you want an original quality upload you will find that you run out of space very quickly and will have to pay money to increase the volume. Here basically the quality is maintained and the cost of storage is relatively negligible. Another advantage is privacy, the photos are kept in your home and not in an unknown place. Audio Station - takes everything said for Google Photos and does the same for Spotify, this time with monthly money savings. At a time when most of us are at home I think it's a shame to pay money for music services when you can do them locally at home as easily as Synology offers. Plex Server - Not a Synology product, but fully supported here as well. Adds to the device the ability to be Netflix local. An amazing and convenient product that allows indexing of movies, adding content to the movie automatically, and streaming it to all the devices in the house - phones, smart TVs, streamers. I used the app directly on the NAS for a while, and then switched to a dedicated computer for Plex to allow streaming with 4K encoding to 2 devices in the receiver - here already the CPU of the DS420 + could not withstand the load. But for single streaming (with 1080P encoding or without 4K encoding) the server was fine. Synology Drive Server / Client - A very nice tool that allows horizontal backups of all your devices to the server. Another super convenient tool that enjoys the advantage of freebies and privacy over other cloud solutions on the market. In the "daring" department I will show my use of the house at the moment: as a compulsive manipulator, I could not miss the curiosity from Proxmox - a virtualization server that provides a layer of hypervisor on the hardware. So I decided that what I really needed to do was learn how to do it right, so I decided to go for Synology. I currently have 7 servers installed on 4 virtual containers (I will detail some of them immediately) that work directly with the NAS. In practice - the NAS provides storage for the servers, and weekly backup for all the servers so that if I fail I can restore the servers with a single click. The services I currently run are: PiHole - I will not focus too much on this, but it is a service that can also be installed on Synology without another computer. A general solution for blocking advertisements for any computer that connects to the home network, which in my opinion should be mandatory at home. Media server and film management automation: Jackett - an application that connects to torrent sites (with the help of your user) and scans them to open an interface for other services in your home to download the relevant content (in my example - movies and series) Deluge - a very cute client to download torrents, in my case he Downloads all torrents directly to NAS sharing. Sonarr + Radarr - Two applications (Sonarr for series, Radarr for movies) that provide a convenient search interface for content by popularity, genre and additional filters. And manage the download of the content with an interface to Jackett and Deluge. At the end of the download, they perform a Hard Link (copy of the file without doubling its volume) to another folder on the NAS, which is the ready-to-watch movies and series folder. Bazarr - the last finish in the chain - automatic download of subtitles from well-known sites in the country. The app launches with the other apps I described, and once the transfer of the movie is complete its purpose is to look for suitable subtitles and download for sharing on NAS alongside the movie. Plex - As I described in the previous section, uses NAS to stream movies and series at home. I have prepared for you a small sketch of the architecture: general impression and comparison as one who has moved from QNAP to Synology I can say that the product feels better and safer. It lacks things that I was less interested in (HDMI connection for example) but those who are not as interested as me will get a product that feels more finished, which is very important when you store all your sensitive files in one place. I personally think everyone needs some sort of backup solution in their home - whether it's Google Drive, an external disk with a USB connection or go all the way with a NAS server. The first two solutions are cheaper but much more limited than a NAS server, and for those who are thinking of maybe taking advantage of the Corona period and enjoying a media server will greatly benefit from this upgrade. In my opinion, those who have to choose between QNAP and Synology 0 will have to answer the question - how much are you willing to mess with the device in exchange for extra features? How much are these extra features necessary? (For example the HDMI connection may be really necessary if you want to use the server as a streamer, I personally did not find it useful). Both products are great and in both you will achieve similar results, it personally took me longer to configure my QNAP from 0 compared to the Synology interface. Upgrades I did as I said before, I installed 2 SSDs for my server to improve the IO speed on my server. In addition I also upgraded the server with an additional 16gb RAM according to the review here: https://nascompares.com/2020/04/06/synology-nas-memory-upgrade-guide-2020-edition/ SSD: Since all the metadata of the movies, the photos of The family and the movies themselves are on NAS, I wanted to improve the access speed to them so that it would be easy to index the photos or the upload speed of the photos and the information about the movies would be higher (usually takes a second or two to load the photos when there are a lot of movies). Connecting the kits took a few minutes (opening the slot and assembling), but their formatting took a very long time (if I remember correctly about 8-10 hours). At this time the server was working as usual of course. The configuration was simple and guided just like most processes in Synology, there is an interface that recommends the cache size and type according to how the system is used and the total volume, and then starts with the index: the use and volume of information to choose the cache volume: guided selection of the caching type: the indexing process: the upgrade was not cheap But I must say that you see a significant improvement after the upgrade. Skipping between time points in the movie will be at top speed, browsing photos will be instant and no waiting and most interestingly - uploading new photos has been improved by almost 50 percent according to my test.