Now my computer can download files at speeds up to 10Gbps. Show me how I came to live like this

Network speed increased from 1 to 10 Gbps. The goal is to work more comfortably with files on the local network of my apartment.

The cables of the sixth category were laid in the walls in advance during the repair. In total, about three hundred meters. Means that I can connect any equipment in every room at a speed of 10 Gbps. The only requirement is that the device supports a 10-gigabit network. But it’s only a matter of time. The main thing is that the infrastructure is ready.

1 TB of disk space is small. Added server

The source materials of the video reviews must be stored somewhere. Not one, not even two terabytes will not be enough for 4K video content in several years. Therefore, since 2019, I have been using external data storage. A kind of "local data center". The disks hold terabytes of information, but the connection speed is insufficient. The reason is the slow gigabit network.

My previous NAS was Synology DS420 +
My previous NAS was Synology DS420 +
My previous NAS was Synology DS420 +

Not a mistake or a typo - speeds of 1 Gbps in 2021 are not enough for comfortable work with video content.

Bleeding NAS SSD and 10 Gigabit module

In 2021, I settled on an advanced DS1621 + NAS from Synology. A complete server, but small and easy to set up.

I use it not only for data storage. The NAS runs a user-friendly, application-enabled operating system. Therefore, it also acts as a multimedia center.

The NAS is modular in design. The basic configuration includes 6 trays for HDD or SSD. If you add two "five-disk" units from Synology, it becomes sixteen.

Synology DS1621 +
Synology DS1621 +

Both full-size 3.5 "drives and 2.5" drives are supported. The NAS has four Gigabit Ethernet ports onboard.

An NVMe SSD slot is also provided. The SSD acts as a cache memory - a buffer between RAM and hard drives. Improves system performance.

The performance and functionality of the DS1621 + with years of room to spare. The limitations were imposed only by a 1-gigabit wired network.

But there is only one connector on the computer. Even after connecting with four patch cords to the switch, the actual speed will be no more than 110-125 megabytes per second.

The only solution was to add 10 Gigabit modules to both the computer and the NAS.

I foresee the objection: “10 Gigabit network is not needed. In practice, the speed does not even reach 1 gigabit. "

The opinion is based on outdated information about the speed of drives. Moreover, a gigabit port slows down the network. Deprives the user of fast HDDs and SSDs of the benefits that are available with new drives.

HDD hard drive faster than gigabit network

In 2021, the objection is irrelevant. Let's take a 3.5-inch hard drive as an example. The drive has more than 10 times the storage space available with your iMac.

The actual data read and write speed of this drive exceeds 250 megabytes per second. The gigabit network, which was steep in the recent past, has become a weak link. Its speed is half the speed of HDD.

If you put a 2.5 "sata SSD SAT5200 in the NAS tray instead of a hard disk, the speed increases to 500 MB per second. In this case, the gigabit module "slows down" the network not by 2, but by 4-5 times.

SSD Synology SAT5200
SSD Synology SAT5200

2.5 Gigabit network cards are already mainstream. The system administrator's blog test bench has a built-in connector that supports speeds up to 2.5 Gb / s. That is, about 300 megabytes per second. As a result, even a 2.5-gigabit network will slow down NAS with solid state drives. And significantly - almost twice.

But I will not drag out and consider the hardware with which the network was pumped. I will test it in real conditions.

The preparation of the DS1621 + consisted of installing an E10G18-T1 10 Gigabit Ethernet connector. The module from Synology is specially designed for pumping NAS.

We open the case of the NAS.

Install the expansion module into the PCIExpress 3.0 slot.

Network Card Synology E10G18-T1
Network Card Synology E10G18-T1

Putting back the NAS case. The solution is feasible even for a novice user.

At the time of hardware installation, SATA hard drives are installed in the NAS trays. The task is to pump the network to the maximum. Therefore, we install two SATA SSDs Synology SAT5200-480G.

SATA SSD Synology SAT5200-480G
SATA SSD Synology SAT5200-480G
SATA SSD Synology SAT5200-480G

The disks will be assembled into a RAID array. We will check the actual network performance during testing.

Upgrade your computer with a 10 Gigabit network card

Next, add a network card TP-Link TX401 with support for 10 Gbps, which I previously reviewed.

We put TX401 in the PCIExpress 3.0 slot of the test bench motherboard. The set includes two strips. The test bench is assembled in a full-size gaming-grade case. But there is also a bar for thin cases.

Network Card TP-Link TX401
Network Card TP-Link TX401

Can work at different speeds:

  • 10 Gbps
  • 5 Gbps
  • 2.5 Gbps
  • 1 Gbps
  • 100 Mbps

The CAT6A patch cord was in the box with the TX401, which is needed for a full 10G network.

Difference from CAT5E - increased requirements for twisting density, wire and braid thickness. There was no need to purchase additionally. A luxury bonus from TP-Link as it is expensive.

The switch for my 10 Gigabit network was TP-Link TL-SX105. There are five ports on board the network switch. Moreover, each Ethernet connector supports 10 Gbps. Read the details in the review.

TP-Link TL-SX105
TP-Link TL-SX105
  • We connect the first cable to the Ethernet connector of the computer's network card.
  • We connect the second cable to the NAS port.

We connect patch cords from the computer and network storage to the ports of the ten-gigabit switch. We also include the switch in the existing home local network.

10 Gigabit Network Testing

We check the nominal connection speed on the computer and NAS. In the connection properties of Windows OS, the speed is 10 Gbps. The NAS software displays 10,000 Mbps.

The first check was successful. The operating systems of the computer and NAS identified the new connection as 10 Gigabit.

First test - copying files from a computer to a network storage on HDD drives. The speed is kept up to 200 megabytes per second:

HDD recording speed over 10Gbps network
HDD recording speed over 10Gbps network

As you can see, the 1Gbps limit has been passed even on the HDD.

Second test - copying files from a computer to network storage, but this time to SSD drives. The speed is kept at 400-430 megabytes per second:

Write speed to SSD over 10Gbps network
Write speed to SSD over 10Gbps network

Third test - copy data from NAS to PC disk. The average speed is 500 megabytes per second. Synology claims the maximum speed of the drive is 530 MB / s.

SSD read speed over 10Gbps network
SSD read speed over 10Gbps network

Conclusion from three tests - A 2.5 Gigabit network card is not enough. 500 MB / s corresponds to 4 Gb / s. The goal of pumping has been achieved. The actual network performance is almost equal to the maximum claimed by Synology for drives - 530 MB / s.

Checking the speed limit with iPerf

We will not stop there and load the network equipment to the maximum. We will carry out the test using the special utility iPerf.

To do this, we will make an iPerf server out of the NAS, and a computer as a client. In the package center of the NAS operating system, download and install the Docker application.

Go to the "Registry" section. Enter "iperf" into the search box on the top right.

Let's choose the most popular option from the list. Easily recognizable - shown first in search results. And the number of ratings is higher than other versions.

Go to the "Image" section. Renaming the container is available after double-clicking.

Scroll through the gallery ->
Scroll through the gallery ->
  • Go to the "Network" tab in the "Advanced Settings".
  • We activate the option "Use the same network as the Docker host network".
  • The NAS is required to function as a server. To do this, go to the "Protection" tab. In the text box, enter the command: -s.
  • We successively press three on-screen buttons: “Apply”, “Next” and “Done”.

We return to the Windows 10 desktop.

We open the command line of the operating system - classic or PowerShell.

We indicate the path to the iPerf utility. Enter the command: -c [server IP address]. Press Enter.

Network test results using the iPerf utility
Network test results using the iPerf utility

The first result is about 7 Gbps. We do not dwell on the second success either. Trying to reach the maximum network speed.

Let's emulate parallel connections. We repeat the input of the previously applied command with the addition of -P 5. The "5" in this command is the number of connections. The case of the Latin "P" is important - the command uses a capital ("capital") letter.

Network test results using the iPerf utility
Network test results using the iPerf utility

The total speed reached 9.45 gigabits per second.


The pumping was successful. I rate the success as one hundred percent, and the quality of the network equipment is excellent.

The ability to keep the maximum speed of the wired network in 2021 was shown by:

  • NAS Synology DS1621 + with module E10G18-T1
  • Network Card TP-Link TX401
  • Switch TP-Link TL-SX105

A practical result has also been achieved. Data exchange between the computer and the file server is carried out at a speed of 500 MB / s.

Video on upgrading my network:

Providers in 2021 do not provide Internet access at 10 Gigabit speed. For me, the network is not limited to the Internet. I need 10 Gbps LAN speed to work. The NAS is in one room and the computer is in another. The connection between the PC and the server is via a wired home network.

Thanks to the high speed of the network, my working day has become more productive, but shorter. Doing more work in less time.

Do you need a 10 Gigabit network? Write in the comments.

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