Samsung ML-4512ND-XAA - Manual (Page 7)

Features by models
Some features and optional accessories may not be available depending on model or country, see chart below.
( ●: Included, ○: Optional, Blank: Not available)
Features ML-451x Series ML-501x Series
Hi-Speed USB 2.0 ● ●
IEEE 1284 parallel connector
a
a. If you use the parallel port, you cannot use the USB cable.
○ ○
Network Interface Ethernet 10/100/1000 Base TX wired LAN ● ●
Eco printing ● ●
Duplex (2-sided) printing ● ●
USB memory interface ●
Memory module (512 MB) ○ ○
Optional tray ○ ○
Mass Storage Device ○
Multbin Mailbox ○
Finisher (Stacker & Stapler) ○
Short Stand ○