The 1386 part number series is the printable version of the standard HID proximity cards. The LGGMN portion of the part number is called the configuration. Each letter gives information on how the card looks or features of the card. Here is a brief overview of what each letter means in the configuration. See the 1386 Ordering Guide in the Documents and Downloads tab for the full details.

L- Programmed- this should always be the case when ordering
G- Card Front- Plain White PVC w/Gloss Finish- This still includes the card range number written in black (if M is selected below as well), the small blue HID logo, and the 3 dots indicating where it is safe to slot punch the card
G- Card Back- Plain White PVC w/Gloss Finish- The standard and most popular backing
M- Card Numbering- M means that the external number is printed on the card and matches the internal card range number. This is the standard HID configuration.
N- Slot Punch- N means there is not a slot punch. There is still 3 indicator dots on the card to indicate where slot punching can be done safely later. It’s safest to slot punch the cards after printing with a desktop ID printer to avoid possible damage to the expensive printhead in the ID printer.

All proximity cards are programmed on the 125 kHz proximity frequency. If they are another frequency, they are likely a Smartcard or another type of credential.
The most common proximity format is 26 bit H10301. There are also a variety of other formats. Contact sales if you are unsure of your required programming information.
HID 1386 ISOProx II prox cards are printable on standard desktop ID card printers.
CR80. Standard credit card size. 2.125″ x 3.370″ x 0.030″