Hello, digi offered me digi rm1 unlimited. Im currently subscribed to rm40 monthly internet. If i buy the rm1, will it cancel the monthly, or the rm1 unlimited will be considered as an add on?

Need to wait about 3 months la

If not mistaken, only 3Mbps which is equivalent to download 375kBps.

Internet speed is usually measured in bits whereas our normal data packets are measured in bytes. 8 bit equals 1 byte. So 3 megabit is equivalent to 375 kilobytes.

1 Byte = 8 bits
For Speedtest, usually use bits, so it is 3Mbps whereas download (e.g. direct downloads/torrent) will use Byte.
3Mbps = 3000kbps
3000kbps/8 = 375kBps.

Yes, that's right. Been doing this for years for my passive prepaid no.

Nope. Kept in drawer and not slotted in any phone, only do that if required.