Synology RT6600ax Router Review, Part II – Connections & Internal Hardware

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Synology RT6600ax Router Review Chapters

Synology RT6600AX Review, ALL Parts - HERE
Synology RT6600AX Review, Part 1, Unboxing & Design - HERE
Synology RT6600AX Review, Part 3, Software, 5.9Ghz & Verdict - HERE

Synology RT6600ax Router Review – Ports & Connections


It would be fair to say that the lion share of the attention that has been directed towards the Synology RT6600ax router has been about its wireless capabilities, however, the physical connectivity and general LAN standards of the system are a good mix too. That said, the RT6600ax does appear to lose a few things over the older RT2600ac that some users might be bugged by, such as the lack of an SD card slot or reduced number of USB ports, but this is largely mitigated by the inclusion of a 2.5gigabit ethernet (2.5G copper connection) on this router. This is the first example of the adoption of 2.5GbE by Synology in their entire hardware portfolio, which we hope is the start of more widespread adoption in their NAS series over the rather long in the tooth 1GbE.



This 2.5G port can be used as a regular LAN port to connect to a 2.5GbE equipped NAS, a 2.5G switch or even directly towards a 2.5G equipped client device (either directly or via a simple $25+ USB-to-2.5GbE adapter – loads of versions are available to buy now here on amazon). Alternatively, the system will let you use it as a WAN port if your incoming internet connection is greater than a gigabit (eg more than 100MB/s or 1000Mbs) and the availability significantly greater than gigabit internet speeds worldwide has grown in multiple regions thanks to the likes of fiber becoming more affordable and the scalability of its cabling over time being less rigid than legacy installations of the 00’s. That said, it IS worth touching on something raised over on BlackVoid regarding those that apply custom VLAN IDs on their incoming internet connection and are hoping to take advantage of the 2.5G port as a WAN, as the persistent issue of custom IDs on secondary WAN ports (still in SRM 1.2) is still an issue that is awaiting a fix.



There is (of course) a dedicated WAN port on the RT6600ax router that is designed for your incoming internet connection. As the system features the option of deploying it as your primary router, or connected behind your existing router as an AP, it’s quite balanced in how you can choose to use it. Additionally, the SRM 1.3 software that you use to control and configure your router changes a number of options internally depending on whether you chose to deploy it either way. Choosing between these setups can be done during the initialization of the device, but can also be changed easily and in about 60-90 seconds from within the RT6600ax SRM browser GUI. Alongside the gigabit WAN and the 2.5GbE LAN/WAN choice, there are also 3 more standard 1GbE RJ45 (i.e copper) connections for the rest of your connected devices. These are..well… fine I guess. But many would argue that this is quite a tentative step into 2.5GbE for the router and the brand, with multi-port 2.5GbE routers in the market right now and even 10GbE SFP+ routers being available from brands like Netgear in their Nighthawk series for several years now, the RT6600ax arriving with a single 2.5GbE and 1GbE covering all the others do seem a little tight in 2022. These ports all support features such as the LAN/WAN failover, linking to vLANs in SRM 1.3, priority of service control and some incredibly sophisticated control customization within SRM in general – but we are still talking about 1Gb Ports and therefore still cutting apart slices of a much smaller potential cake.



HOWEVER, where the Synology Router series still continues to consistently impress me is when I see the pedigree of their NAS development get divulged into their routers and SRM. By this, I mean that the simple USB Port on the RT6600ax port supports a wide variety of uses In the system with the likes of File Station, Download Station, Media Server and more. Rather than a tremendously basic breadcrumb directory being available to storage connected to the router, Synology allows you to interact with the external drive with the full file manager package. This includes browser file/folder display, archiving and extracting, sharing files (with lots of security/viability options), play locally or streaming over UPnP and DLNA. Additionally, you can make shared folders with ease and then mount those folders locally to your PC/Mac as mapped network drives, just as you would a NAS (with remote WebDav sharing also available). Alternatively, you can use the drive in conjunction with the download management tool (supporting BT/NZB/FTP/RSS and more) to automatically search and download files from the internet with ease. Then you have Media Server tools to stream your multimedia to home consoles, smart TVs, sound systems and more.



Yes, you need to get an external USB drive, but after that, you can run this router like a NAS-lite system very easily. Finally, you can use this USB port to connect a USB SIM dongle or Mobile phone in tether mode to attach an additional internet connection (either as the main internet source or as a secondary connection for use in a failover setup in SRM). I’ve barely scratched the surface on the utility of this port (with several more tools in the app center, as well as the support of the DS File and DS Get applications for iOS and Android) in the RT6600ax. However, this is somewhat undercut by the Rt6600ax router only arriving with a single port, despite the older RT2600aac arriving with two, meaning you will have to make a difficult choice about which accessories you need most (with USB multi-port adapters simply sharing the bandwidth and power inefficiently). The side of the Synology RT6600ax features a couple of buttons for activating the password-free WPS service between devices that do not have manageable GUIs and a button for disabling/enabling WiFi on the fly. Both are quite straightforward things and there isn’t much more to say on that really.



Overall, the connectivity and physical management of the RT6600ax are all pretty standard stuff. The fact there is only a single 2.5GbE port is something of a pain (forcing hard choices between external internet connectivity and shared bandwidth with devices such as NAS and larger bandwidth switches) and only a single USB port seems odd when you compare it against the older RT2600ac and RT1900ac with multiple ports and/or SD Card slot – but those aside, everything else about the RT6600ax ticks the boxes for me and what you have is a very sturdy, well designed and highly capable router here. Let’s discuss the internal hardware and see what exactly makes the RT6600ax tock.

Synology RT6600ax Router Review – Internal Hardware


With each release in the Synology router series, we have seen the general standard of the hardware improve (though the mesh system was something of an add-on really) and these improvements have more often than not affected the bandwidth potential of these devices. They all take advantage of MU-MIMO and multiple antennae, but the maximum frequency covered, the maximum simultaneous streams, wireless standards and total bandwidth differ quite substantially and that is only partially to do with the implementation of WiFi 6. Improvements in the CPU architecture and available memory also play their part, with the standard of hardware increasing at each tier too. Below is how the Most recent three Synology routers compare in their specifications, wireless compatibility and bandwidth:

RT6600ax


 RT2600ac


 MR2200ac
Class / band
compatible standards		 AX6600 / Tri-band
IEEE 802.11ax / ac / a / b / g / n		 AC2600 / dual band
IEEE 802.11ac / a / b / g / n		 AC2200 / Tri-band
IEEE 802.11ac / a / b / g / n
Maximum communication speed
(5GHz band 1)		 4800Mbps


(160Mhz)

 1,733Mbps
(4str / 80MHz)		 867Mbps
(2str / 80MHz)
Maximum communication speed
(5GHz band 2)		 1200Mbps incompatible 867Mbps
(2str / 80MHz)
Maximum communication speed
(2.4GHz band)		 600Mbps 800Mbps
(4str / 40MHz / 256QAM)		 400Mbps
(2str / 40MHz / 256QAM)
WAN terminal 1000BASE-T x 1 1000BASE-T x 1 1000BASE-T x 1
LAN terminal 2.5GBASE-T x 1 * 1
1000BASE-T x 3		 1000BASE-T x 4 * 2 1000BASE-T x 1
USB terminal USB 3.0 Standard-A x 1 USB 3.0 Standard-A x 1
USB 2.0 Standard-A x 1		 USB 3.0 Standard-A x 1
CPU Qualcomm IPQ6018
Arm Cortex-A53 4-core 1.8GHz		 Qualcomm IPQ8065
Qualcomm Krait 300 2 core 1.7GHz		 Qualcomm IPQ4019
Arm Cortex-A7 4 core 717MHz
RAM 1GB DDR3 DDR3 512MB DDR3 256MB

So, as you can see, a notable increase in total available bandwidth, thanks to RT6600ax including support of the 160Mhz frequency, as well as more space to utilize with access up to the 5.9Ghz band. The antenna that the RT6600ax uses is divided into a 2×2 block and a 4×4 block internally and if you remove the external casing, you can see how their respective antennae cabling heads in different directions.



The antenna connects to the controller board in 2 different sectioned blocks on board. The controller itself is covered in a HUGE heatsink panel that you can just about make out in the system if you look closely through the vents. Again, as this system does not have access to an active cooling system (fans etc), its reliance on passive cooling and heat dissipation in peak periods is going to be hugely important.



Removing this heatsink is no easy task and you can immediately see the huge amount of tactical/precise thermal padding that has been applied to the key areas inside the router. The heatsink itself is what seems to make up the bulk of the weight of the RT6600x in fact. Let’s take a closer look at that controller board and processor arrangement.



The three main quadrants of the controller board that are going to be doing all the work are pretty clear and have even been surrounded by a metal border to ensure the thermal padding and heatsink connection are as direct and efficient as possible. Let’s take a closer look at the components under those thermal pads.



In the first block, where four of the antennae were connected, we find a Qualcomm QCN-9024 / QCN9024 WiFi6 MU-MIMO 4×4 network controller, that is reported to feature a 5.15GHz – 5.95GHz frequency, OFDMA: BPSK, QPSK, DBPSK, DQPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM, 4096-QAM modulation and it supports 20/40/80/160MHz at 5GHz.



In the middle of the board, we find the brains of the outfit! The Synology RT6600ax Router runs on a Qualcomm Atheros IPQ6018 Quad-core ARM 64-bit A53, at 1.8 GHz. This processor (yes, I googled) is part of the Qualcomm Networking Pro 400 family and is a highly flexible but power-efficient Wi-Fi 6 (802.11ax) network solution, supporting 4 spatial streams of Wi-Fi 6 connectivity. The Qualcomm Networking Pro series supports next-generation Wi-Fi 6 features like optimized multi-user scheduling of both uplink and downlink MU-MIMO and OFDMA across all spatial streams. It also supports 1024QAM, BSS colouring, and WPA3 security, all delivered on an architecture designed to successfully associate and maintain connectivity for hundreds of client devices simultaneously. This processor also arrives with two visible blocks of memory which comprise 1GB of DDR3 Memory.



The third and final clearly separated block is where the other two antennas are connected into. Again, the details on these are a little unknown at the moment, with one block having the two antenna connectors and an additional Qualcomm processor and a further block below it that is not too clear. and I will revisit this area of the article as soon as I know more (or if/when someone can detail it in the comments!).



Finally, we have a single block/module of Kingston 4GB eMMC MLC flash (EMMC04G-M627). This is where the Synology Router Manager software and the changes you make/apply to the system will be applied and stored. Unlike Synology’s traditional NAS systems, the RT6600ax does not feature any internal SATA bays that you can easily populate with HDD/SSD storage media (though USB storage additions are possible). This is fairly common practice among intelligent/smart routers and in the case of Synology including their rather premium router management software (which receives regular updates and has a number of additional option add on features), I can imagine a decent chunk of that 4 gigabytes being used quickly. The RT6600ax arrives with the latest version of SRM 1.3 (Synology router manager) which, at the time of writing, is still unavailable on any other Synology Router system.



And that largely breaks down the hardware we have here inside the RT6600ax. This is all certainly a big step up from what we have seen so far from the brand in the RT6600ax and RT1900ac, but how does that translate in the software, services and its day to day use? Let’s why 5.9Ghz support on the RT6600ax is a bit of a game changer.


 

Synology RT6600ax Router Review Chapters

Synology RT6600AX Review, ALL Parts - HERE
Synology RT6600AX Review, Part 1, Unboxing & Design - HERE
Synology RT6600AX Review, Part 3, Software, 5.9Ghz & Verdict - HERE

Alternatively, you can watch the FULL review of the Synology RT6600ax over on YouTube below:



 

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    53 thoughts on “Synology RT6600ax Router Review, Part II – Connections & Internal Hardware”

    1. The biggest flaw in synology product line – its not complete. No switches. No PoE. this router show again cheap plastic 4 port ethernet on the back. There is no way to build even small size home network with just router. They should add two 12/24 port switches, with/without PoE and SFP support running the same software. together with NAS they can have a good solution
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    6. Ill agree to a Great rewiew, and you have mentioned a lot of things which are really helpfull (not for me) but for other sure.
      What i want to comment on, is your surprise that the RT6600ax comes with the SRM 1.3 and the older devices are still SRM 1.2, well this is what synology was presenting from the “Day One” when the RT6600 was presented by end of 2021 so no surprise for me here, the SRM 1.3 for the RT2600 and MR2200 will be or according to synology should be in June so we need to wait for this one as well.
      What im glad and really glad that the support for the MR2200 and the mesh is there, and also with another RT6600, which you cannot do with a RT2600 so a huge step forward i like, AAAANND well if you do a MESH then you will have TWO USB ???? Ports, the question is if the can be used but i think this is an alternative for those who will be having a MESH network.
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    7. Synology does produce nice devices but it’s all fine when you have warranty. When it’s over and your device will stop working, synology won’t repair it even if you could just pair for the repair. They just dont give a f**k. Think twice before you buy an synology router.
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    8. This looks like an unboxing, not an actual review. You’re holding a device that is capable of sophisticated beam-forming, but we don’t have any speed tests / comparisons / ping results for a typical wood-frame house for example. I like the new features, but I was really into that I’d just set up a pfSense box, or a UDM pro. Why would I buy this thing instead of a cheaper WiFi6 AP/router? Why would I buy it instead of a UDM pro + AP? I had an ac2200 before and I returned it, because SRM is a far cry from DSM, and here they are cramming features into a device with just 1GB of RAM. If you’re saying that it strikes the perfect balance, I’d like to see come figures proving that. Otherwise the video should be titled either “unboxing” or “first impressions”.
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    11. That’s for a great review. Worth watching it all. Look forward to future videos on this router.

      Three questions; Do you think Synology will release a WiFi 6 upgrade to the MR2200ac? Maybe an MR6600ax?

      Also, can devices be assigned a frequency? Orbi takes control of that an many times connects 5GHz devices (like FireTV) to 2.4GHz when only in the next room. ????????‍♂️

      Lastly, I’m sure the answer is yes, but I didn’t see it covered, can you assign static IP’s or reserve IP’s for devices?

      Thanks again! I really love the ability to create a VLAN that merges with an SSID to isolate my IoT.
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    12. The usual lan limitation of all router you have only one 2.5gbe port. Now a router should have at least one 2.5 gbe (Better 5gbe as in Italy a phone company started to sell a FTTH 5gbe fiber connection at a good price in selected city) wan AND one 2.5 lan port (better 5gbe) and let a multi-g switch to manage the signal. Also it should manage analog phone otherwise we must pay for the router that provider offer
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    13. Very interesting review so thank you. You say you will be reviewing the Asus RT AX series….will you be doing this one?
      ASUS RT-AX89X 12-Stream AX6000 Dual Band Wi-Fi 6 802.11ax Router
      Cheers
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    15. Felicidades, es un buen ejemplo.
      250 sentadillas son unos 4.FO/L-J27g1 muchas y un buen ejercicio.
      5:25 Se deja ver que hay muy buenos resultados ????????

      Saludos desde la Cd.. de world ????????????
      los mortales abian apreciado tan hermosa mujer.
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    18. Hey
      Thanks so much for this very informative Video! 2 Questions though:
      1. Can you connect the router to a VPN, so your whole home internet traffic is secure? If so, what VPNs can be used?
      2. As some might know, wireguard is a very simple, fast and secure VPN solution. Is it possible to run wireguard as a server or as a client on this router? If there’s a option to install packages, really one should be able to potentially develop or manually install the option for wireguard as a client and perhaps even as a wireguard VPN server…..

      Many thanks!
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    20. Great review – thank you. Is there any way to limit the internet bandwidth available to a specific user / device or IP range? I usually allocate only 80% of the available internet bandwidth to make sure that no single user or device hogs all the bandwidth and that my downloads always have bandwidth available without impacting anyone else.
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    35. I have a Net Gear r9000 x10, do you think this rt6600 would be a good upgrade? R9000 has started dropping Wi-Fi and kicking me out of plex, on paper they seem to have similar specs, although net gear have tried to kill the router with firmware numerous times.
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    39. Just wondering. The new software disabled support for 4G dongle. But I noticed in your video around minute 31.45 that there is a mobile network section in the settings.

      I hope I can use my SIM with dongle. Been wanting to switch to Synology router for the longest time but couldn’t due to the poor support for SIM card.
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    43. Thanks for the thorough review but this is too little too late from Synology as an existing customer… I welcome SRM 1.3 VLAN and multiple SSID but these were promised and should have been out several years ago however they stalled SRM development to focus on DSM7. It has left a really sour taste in my mouth as I invested heavily with RT2600ac and 2x MR2200ac (along with multiple NAS) but have had to relegate the RT2600ac to just doing WiFi as an access point because of all bugs and the lack of development. I’m now using a PFsense router which is far more stable and has had better features, scalability and resilience for years. I’ll look at SRM 1.3 when it lands for my existing devices but when it is time to upgrade my mesh WiFi hardware I have no loyalty to Synology or confidence in their support for their network devices so i’ll be looking at other offerings.
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