
- Port eSATA: 1 x eSATA
- HDD Interface: 4 x SATA (4 x Bay)
- Power: AC input power voltage: 100V to 240V AC Power frequency: 50 to 60 Hz, single phase
- Temperature: Operating Temperature: 5 ~ 35 degree Celsius (40 ~ 95 degree Fahrenheit) Storage Temperature: -20 ~ 60 degree Celsius (-5 ~ 140 degree Fahrenheit)
- Model #: RX418
- Item #: 9SIAMW5JXK4408
- Return Policy: View Return Policy
Installing and setting up the RX418 was very easy. It installed into the rack just like any other component with the included parts. From there it was plugging in the power, connecting it to my RX820+ with the included eSATA cable, and installing the hard drives. I had the RS820+ turned off while the RX418 was being connected just to be extra safe. I turned on both units and logged onto the DSM of the RX820+ from a computer. While in the DSM I saw that the RX418 along with the hard drives had been discovered. One may treat the hard drives as if they were on the host machine. I decided create a storage pool with the disks in the RX418. If the host system (my RS820+ in my case) is connected to a UPS then it handles shutting down the RX418. (It's possible to configure the DSM such that alerts from the UPS are passed onto other machines on the network. I was using this because I had two Synology NASs, one which was replaced by the RX418, but there was only one USB connection to the UPS. This feature let me shut down the second NAS safely. Go to Control Panel -> Hardware & Power -> UPS. It might be placed differently depending on which version of the DSM you are running but at there bottom there is a button labelled "Device Information" to get details about the UPS. Above that there is a checkbox for "Enable network UPS server". To send notices to other Synology devices, I don't know about other brands, ensure that it is enabled, and click on the button below labelled "Permitted Synology NAS Devices" which will let you enter the IP addresses of any NASs you wish to shut down at the same time as the one you are logged onto.

- Brand: Terra Master
- Model: F4-425 Pro (N350)
- Included HDD Capacity: Diskless System
- Form Factor: 4-Bay
- Model #: F4-425 Pro
- Item #: 9SIACN5M209670
- Return Policy: View Return Policy

- Type: Accessory
- Model #: E10M20-T1
- Item #: N82E16822108736
- Return Policy: Manufacturer Only Return Policy
- 10GB works well - cache drives work well

- Form Factor: 8-Bay
- Processor: Annapurna Labs Alpine AL324 ARM Processor
- Installed Memory: 4GB DDR4
- Power: 250W, 100-240V AC, 50/60Hz, 3.5A Power Consumption: HDD Sleep Mode 27.949 W Power Consumption: Operating Mode, Typical 50.858 W
- Model #: TS-832PX-4G-US
- Item #: N82E16822099112
- Return Policy: Manufacturer Only Return Policy

- Form Factor: 5-Bay
- HDD Interface: 5 x SATA (5 x Bay)
- RAID: SINGLE DISK,RAID 0,RAID 1
- Power: 100V to 240V AC,50/60 HZ, Single Phase
- Model #: D5-300C
- Item #: 9SIACN5HWS7778
- Return Policy: View Return Policy

- Brand: Terra Master
- Model: 2 Bay, F2-425 Plus
- Included HDD Capacity: Diskless System
- Form Factor: 2-Bay
- Model #: F2-425 Plus
- Item #: 9SIACN5KNM3107
- Return Policy: View Return Policy
Pros are the device can run truenas just fine and with raidz1 saturate my modest 1gbps network. It cools the drives fine which are old crusty(hot) dell constellation enterprise drives. You can set the fan in the bios to a constant speed since truenas doesnt do that and at about 50-60% is all you need since the cpu is passively cooled and is low power anyway. 3 nvme slots is great also and makes this so easy to fill up with storage! Case is also easy to get apart to install the nvme drives.

- Form Factor: 4-Bay
- Port RJ-45: 1 x 10/100/1000M
- Port USB: 2 x USB3.0
- HDD Interface: 4 x SATA (4 x Bay)
- Model #: F4-210
- Item #: 9SIACN59BH4380
- Return Policy: View Return Policy

- Form Factor: 4-Bay
- Port RJ-45: 1 x 10GbE + 2 x 1GbE
- Port USB: 2 x USB3.0 + 2 x USB2.0
- HDD Interface: 4 x SATA (4 x Bay)
- Model #: TS5420DN6404
- Item #: 9SIAMW5JXK2592
- Return Policy: View Return Policy

- Form Factor: 4-Bay
- Port RJ-45: 1 x 10GbE + 2 x 1GbE
- Port USB: 2 x USB3.0 + 2 x USB2.0
- HDD Interface: 4 x SATA (4 x Bay)
- Model #: TS5420DN3202
- Item #: 9SIAMW5JXK2584
- Return Policy: View Return Policy

- Form Factor: 4-Bay
- Rotational Speed: 7200RPM
- Port RJ-45: 1 x 1G Ethernet | 1 x 2.5G Ethernet
- Port USB: 1 x USB3.2 Gen1 and 2 x USB2.0
- Model #: TS-433-4G-US
- Item #: 9SIADGEJCG8359
- Return Policy: View Return Policy
Easy setup, when knowing exactly what you need. Recommend adding RAM, any DDR4-sodimm. I used 3200 even though 2666 is recommended and it works. Great server for plex!

- Form Factor: 4-Bay
- Port RJ-45: 1 x 10GbE + 2 x 1GbE
- Port USB: 2 x USB3.0 + 2 x USB2.0
- HDD Interface: 4 x SATA (4 x Bay)
- Model #: TS5420DN0802
- Item #: 9SIAA4YKFU9822
- Return Policy: View Return Policy

- Form Factor: 8-Bay
- Port RJ-45: 2 x 2.5 GbE
- Port USB: 3 x Type-A USB 3.2 Gen 2 10Gbps 1 x Type-C USB 3.2 Gen 1 5Gbps
- HDD Interface: 8 x SATA (8 x Bay)
- Model #: TS-873A-8G-US
- Item #: 9SIAA4YKFU9803
- Return Policy: View Return Policy
Unit comes with 8 mb of RAM. Upgrading to 32 was easy and allowed use of the more advanced QTS Hero software.

- Model #: F4-210-1G-CA
- Item #: 9SIACN5KCG9779
- Return Policy: View Return Policy

- Form Factor: 4-Bay
- Supported Protocols: SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN™, L2TP)
- Processor: Realtek RTD1619B
- Installed Memory: 2 GB DDR4
- Model #: DS423
- Item #: N82E16822108830
- Return Policy: Manufacturer Only Return Policy
Easy to set-up Easy to be used by any devices Easily support 6 users ( 4 iphones + 2 android + 5 window laptop + 2 macosx + 2 fire tv) backup and streaming)

- Form Factor: 2-Bay
- Port RJ-45: 1 x 2.5GbE
- Port USB: 2 x USB 3.2 Gen 1 + 1 x USB 2.0
- HDD Interface: 2 x SATA (2 x Bay)
- Model #: LS720D0802B
- Item #: N82E16822165856
- Return Policy: Manufacturer Only Return Policy
Easy to setup. Nice UI. Aesthetically pleasing unit. 2.5 gig NIC. Not much taller than the drives themselves.

- Form Factor: 2-Bay
- Port RJ-45: 1 x 10/100/1000M
- Port USB: 2 x USB3.0
- HDD Interface: 2 x SATA (2 x Bay)
- Model #: F2-210-CA
- Item #: 9SIACN5HB43055
- Return Policy: View Return Policy

- Form Factor: 8-Bay
- Processor: AMD Ryzen V1500B quad-core 2.2 GHz
- Installed Memory: 4GB DDR4
- RAID: RAID 0, 1, 5, 6, 10, JBOD, Basic, Synology Hybrid RAID (SHR)
- Model #: RS1221+
- Item #: N82E16822108757
- Return Policy: Manufacturer Only Return Policy
- Rackmount - Minimal dept (works with shallow racks) - Good cooling - Possibility of 2 PSU - Possibility of extra disks units *. - SSH is available for advanced system admin**. *Read well on Synology website if you are planning to use it. ** DSM is NOT a regular linux release, so make SURE you know what you are doing. Refer to the documentation and community forum to learn more.

- Form Factor: 4-Bay
- Installed Memory: 8GB
- Model #: F4-424 Max
- Item #: 9SIACN5KB26934
- Return Policy: View Return Policy
Great unit

- Form Factor: 12-Bay
- Processor: Intel Xeon D-1541 8-core (16-thread) 2.1GHz
- Installed Memory: 8GB DDR4
- RAID: RAID 0, 1, 5, 6, 10, JBOD, Synology RAID F1, Basic
- Model #: RS3621xs+
- Item #: N82E16822108758
- Return Policy: Manufacturer Only Return Policy
Straightforward rack install. Took about an hour with the optional brackets (you need those; they are not optional). First time using Synology. It is even better than I expected. The machine is largely quiet (see cons). I got Docker working relatively quickly and was able to host containers that I could easily access from another machine w/o issue.