The 4-Camera License Key from Synology 4-Camera License Key for Surveillance Stationallows you to add 4 cameras to your Synology Surveillance Station. By applying the license key on the Surveillance Station user interface, you can set up and manage the additional cameras on your network.

Expands Existing Synology System    Compatible with Various Cameras

Supports IP cameras verified by Synology and other user-reported compatible IP cameras

Related Questions and Answers

Q: 1. Whats the largest hard drive can you put in this unit ?

A: The largest drive capacity on the Synology DiskStation DS223j 2-Bay NAS Enclosure's compatibility list is 16TB, though larger drives like 18Tb and 20TB may also work.

Q: 2. Can this support 20 TB hard drives?

A: Yes, the Synology RackStation RS422+ 4-Bay NAS Enclosure is compatible with 20 TB drives.

Q: 3. Does the Synology DS1821+ 8 bay unit support Seagate 20TB Nas Drives?

A: No. At the time of this post, the Synology DiskStation DS1821+ 8-Bay NAS Enclosure, would not support the Seagate 20TB Nas Drives.

Q: 4. Hello, is this a reliable and fast solution for 2 to 4 clients sharing 4k prores video files ? all on fcpx thx

A: No, it is not recommended to edit from. You need a NAS with Thunderbolt 3.Here is an example: https://www.bhphotovideo.com/c/product/1446234-REG/qnap_tvs_472xt_pt_4g_us_tvs_472xt_ultra_high_speed_4_bay.html

Q: 5. Does Ddr Ram have to be added in equal sized pairs? So if i start with 4gigs of ram can i add one 16gig card and get optimal performance, or shd I only add either one 4 gig card, two 8gig cards or two 16gig cards?

A: If multiple RAM modules are installed inside the Synology DS1821+, both modules should be of the same speed and capacity.

Q: 6. What is the best drives to use?

A: Seagate IronWolf drives are highly recommended for use with the Synology DiskStation DS423 4-Bay NAS Enclosure.

Q: 7. Does this Synology Model run Cloudstation Server?

A: The Synology DiskStation DS423 4-Bay NAS Enclosure BH #SYDS423 uses Synology Drive Server, the successor to Cloudstation Server.

Q: 8. Hello, I would like to know if this Synology model is compatible with the MailPlus service?

A: No, the Synology DiskStation DS423 4-Bay NAS Enclosure is not compatible with the MailPlus service. In order to use MailPlus, you need the Synology DiskStation DS423+ 4-Bay NAS Enclosure, B&H # SYDS423P.

Q: 9. Are these compatible with Midland's MB400?

A: Yes, the Midland AVP-H3 Surveillance Headsets (Pair) are fully compatible with the Midland BizTalk MB400 16-Channel Business Two-Way Radio.

Q: 10. I'd like to use this with the Panasonic KX-TR325S FRS radios. They have the dual pin plug (one std. 3.5mm and the other smaller) so perhaps this or some other one will work. This says it works with all Midland FRS radios, will it also work with the Panasonic that has the dual pin plug?

A: I was told the avp-h3 headset was the best headset for the midland radio's, so it may work with your Panasonic radio but I'm not sure about the quality of sound.