These switches are designed to be low cost and low power so you sacrifice Layer 3 switch feature performance. Again, as a hallmark of the CRS line, this is not something you want to be doing routing or high-end packet filtering on. This is the same CPU with twice the memory of the 8-port desktop unit. The CPU itself is an 800MHz 32-bit 98DX8208 Arm CPU with 1GB of RAM. MikroTik CRS317 1G 16S+RM Internal Heatpipes One can also see the 1GB of RAM next to the chip. That massive heatsink is fed by a dual heat pipe transfer unit that moves heat from the chipset to the rear heatsink. We can see that MikroTik is using 4-pin PWM fans which is nice if one ever had to service the fans. Next to the heatsink, there are two 40mm fans. MikroTik CRS317 1G 16S+RM Rear Fan And Heatsink Instead, this is a large heatsink exposed to the outside and it gets warm. Most switches keep cooling heatsinks internal, but not the CRS317. In the center of the unit, we see a massive rear heatsink. MikroTik CRS317 1G 16S+RM Power Input With Locks Higher-end switches have hot-swap power supplies, but given the cost, the ability to have two PSUs is amazing on the CRS317-1G-16S+RM. Dual power functions are not typical in the sub-$500 new switch market. The two AC inputs lead to internal power supplies. Moving to the rear, we can see a different looking switch than many that we are accustomed to. #Mikrotik routeros review serial#It also allows one to have a simpler setup from a security standpoint especially if one does not want to use a relatively ancient serial console port. That 1GbE port we generally suggest using as a management port since MikroTik has a variety of inexpensive 1GbE switches with SFP+ ports. On the right side of t he switch, we can see a 1GbE port, console port, a recessed reset button, and status LEDs. The 6COM is the first unit that we tested that could not also run at 2.5GbE and 5GbE speeds in this switch but the others, including the MikroTik unit, are able to. #Mikrotik routeros review series#In fact, we have been running a series with not just the MikroTik S+RJ10 but also a number of Cisco coded units like the Ipolex ASF-10G-T, HiFiber SFP+10GBASE-T and 6COM 6C-SFP-10G-T and they have all worked in this unit. We have not found the unit to be picky with optics and DACs, unlike our Ubiquiti EdgeSwitch ES-16-XG. Looking at the front, the primary feature here is an array of 16x SFP+ 10GbE ports. It is also designed to mount on 2-posts rather than 4-posts like many larger switches. One can use rubber feet to mount the unit on a desk even though it is large for a desk unit. Officially the size of the unit is 443 x 224 x 44 mm (17.4 x 8.8 x 1.73 in) which means it fits well into a 1U rack space. This denotes that it is a rackmount chassis, even though the CRS309 came with a rack mounting solution. The Mikrotik CRS317-1G-16S+RM has an “RM” instead of the “IM” suffix that we saw on the CRS309. That makes these switches a great value for what they offer compared to others on the market. Perhaps the best part is that although the MSRP is $399 for this we can often find them online for under $350 or $21-22 per port. This is a 16-port SFP+ 10GbE switch with redundant power supplies and even a 1GbE port for out-of-band management like many higher-end switches. That is exactly where the MikroTik CRS317-1G-16S+RM comes in. When we reviewed the 8-port MikroTik CRS309-1G-8S+IN, we noted a few features that we wanted such as internal power supplies, and oftentimes more ports.
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