I have a Samsung S7 phone and transferring files from my Ubuntu workstation to the S7 SD card have been extremely slow. Transferring a 3 MB files takes no less than fifteen minutes! I searched and searched to no avail. Some solutions stated to download an app to transfer files using WiFi. I did not try, as that seemed more like a band aid and a hassle than a solution, at least to me.

A light bulb moment! What would happen if I transferred to the phones onboard storage? I only tried to the external storage, as I did not want to fill-up the internal storage. So I tried transferring a 3 MB file and the transfer was as expected, less than three seconds. I tried to transfer a 400 MB and the transfer completed within twenty-seconds! I must have a slow SD card, I thought.

My solution is now to transfer to the phone’s internal storage and then use the phone’s file manager to transfer to the external storage. The transfer speed of transferring from the internal storage to the SD card is approximately the same speed as transferring from the workstation to the internal storage (FAST!). I am happy with the solution.

Then I wondered, if another OS would have the same issues. So, I tried using Windows 10 to transfer files to the phones SD card. No issues! The transfer is just as fast to the SD card as to the internal storage using Windows. I am speculating, maybe a Linux driver issue accessing the phone’s SD card and not my SD card being slow! When I was researching for the solution previously, I read an article on the different protocols used. But before I got to try making those changes to my phone, what I consider as my solution was enough of a solution and I did not investigate further.

I ordered the kit from ALLNET.CHINA on February 23, 2020 and received on May 28, 2020.

*Delay due to the Covid-19 empedemic.

Source: Shenzhen, China
Destination: Washington State, U.S.A

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I did purchase another QUAD SATA HAT KIT. Although the unit’s price has stayed the same, the shipping price did increase by $7.52.

1st Purchase:
Unit: $99.00
Shipping $19.44
Total: $118.44

2nd Purchase:
Unit: $99.00
Shipping $26.96
Total: $125.96

Updated July 24, 2020

Second order has shipped!
Status
Pre-Shipment
July 21, 2020 at 2:41 pm
Shipping Label Created, USPS Awaiting Item
COMPTON, CA 90220

Updated July 30, 2020

YAAY! Order received. Waiting for Hard drives to arrive from Amazon.

Updated September 23, 2020 2020

I finally had time to assemble my second unit, and found out that there was an issue. I contacted AllNet China and they assisted in troubleshooting the issue and helped get the issue resolved.

I discovered that AllNet China came out with a black version of the kit. Good thing that the kit was sold out, I might have been waiting for another kit. 😉

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I will provide more details, as to my setup and the kit’s performance, in a separate post, as time allows.
Building a RAID5 with four 1TB drives took approximately two hours.

Item Price (items purchased with different vendors)
QUAD SATA Kit for Raspberry PI #1: $118.44

Raspberry PI 4 4GB: $67.05
Unit: $55.00
Shipping: $5.68
Taxes: $6.37

Seagate BarraCuda 1TB x 4: $216.34
$48.99 x 4 = $195.96
Taxes = $20.38

Total Build Price: $401.83

My twin RAID5 towers are complete. I decided to run them with the covers off. With the covers on, seems adds about about 10℃.

I still think that the QUAD SATA Kit for Raspberry is a bargain.

I am not an affiliate or being sponsored (getting paid) by ALLNET.CHINA, but simply providing a review on my purchase.

CLI
Using ffmpeg, which is often already installed by default.

1. ffmpeg -i file.webp file.png

OR

1. sudo apt-get update
2. sudo apt-get install webp
3. dwebp file.webp -o file.png