Hello, the maximum noise of this switch is 52dB, which produces less noisy than other switches with same working performance. If you need lower-noise, we recommend our S3700-24T4S(#69334) to you, whose maximum noise is 34dB. Hope it can do some help for you. By FS.COM on August 31, 2018

1. Yes, it is. 2. Our S3800-24F4S supports VLAN translations and QinQ function. By FS.COM on May 30, 2018

1.S5800 is L3 switch which can support most of the L3 function. S3800 is L2+ switch which can only support partial L3 function; 2.S3800 series switch's memory, packet forwarding rate, throughput are lower than S5800 series switch; 3.S3800-24F4S supports stack, the S5800-48F4S supports MPLS. By FS.COM on April 16, 2018

Thanks for your new inquiry, I have confirmed with our switch engineer, for S3800-24F4S, it can support DHCP snooping but not DHCP option 82. By FS.COM on March 09, 2018

Yes, the 4 SFP+ ports on this switch can be used to connect directly to a storage server with SFP+ NIC, as long as your server can support the standard SFP+ ports. Thanks. By FS.COM on January 18, 2018

1. The airflow can only be front-to-back presently. But our N-series data center switch are back-to-front . 2. Currently, we don't have the plan about additional IP management port. By FS.COM on November 15, 2017

FS S3800-24F4S and S3800-24T4S support stacking. It can provides true stacking of up to 4 switches in a stack acting as a single unit with totally 106 ports (96x 1G Ports and 10x 10G ports). By FS.COM on October 19, 2017

Compared with stacking, the MLAG devices still need to be managed separately. But the configuration for MLAG is relatively simple, and it doesn’t need to reboot after the configuration is completed. The forwarding decisions are local and normal. The traffic does not need to go between the inter-device interconnection paths, which can avoid the interconnect path bandwidth becomes a bottleneck and also reduce the delay; Whenusing MLAG, you can take the device as a logical unit. It provides fault-tolerance in case one of them fails. And it provides double throughput if a server is plugged into both cores. By FS.COM on September 05, 2017

Yes, for our S3800-24F4S, it has 4xSFP+ uplink ports, and they are all availble for stacking. As you said, you can use two of them for stacking and the other two for uplinks. By FS.COM on August 02, 2017

Stacking is to connect multiple devices through the stack port together to form a virtual logical device. Users can manage the logical device to complete all the physical equipment management. Through the switchstacking, you can achieve high network reliability and large network data transmitting, as well as simplifying network management. Equipment can be stacked through the optical port and electrical port. By FS.COM on July 21, 2017