1c00:3253 serial pci-e, don't work?

I have bought this serial adapter

https://images2.imgbox.com/23/f8/3kwlpXFf_o.png

On linux debian is recognized

Code:lspci -k

02:00.0 Serial controller: Device 1c00:3253 (rev 10)
Subsystem: Device 1c00:3253
Kernel driver in use: serialsetserial report ok

Code:setserial -g /dev/ttyS0
/dev/ttyS0, UART: 16850, Port: 0xe8c0, IRQ: 16
setserial -g /dev/ttyS1
/dev/ttyS1, UART: 16850, Port: 0xe8c8, IRQ: 16so I activated with systemd the serial login

Code:cp /lib/systemd/system/serial-getty@.service /etc/systemd/system/serial-getty@ttyS0.service
ln -s /etc/systemd/system/serial-getty@ttyS0.service /etc/systemd/system/getty.target.wants/
systemctl daemon-reload
systemctl start serial-getty@ttyS0.service

cp /lib/systemd/system/serial-getty@.service /etc/systemd/system/serial-getty@ttyS1.service
ln -s /etc/systemd/system/serial-getty@ttyS1.service /etc/systemd/system/getty.target.wants/
systemctl daemon-reload
systemctl start serial-getty@ttyS1.serviceI have enabled both ports to try but...
none works.
Minicom -D from external pc or internal pc don't work, report only a black frozen screen without serial activity
I have set the usual 9600 8N1 without software/hw control
and with software/hw control but nothing work.
Even send the classical echo commands doesn't work

Code:echo "proof" > /dev/ttyS0
cat -V < /dev/ttyS0Why doesn't work?