HP Designjet 510 Printer series - Manual (Page 206)

Hardware
Item HP part number
Memory module 256 MB CH654A
The memory expansion module is: SODIMM PC2700 333 MHz 256 MB DDR CL = 2.5
Jetdirect EIO network cards HP Jetdirect 620n Fast Ethernet
a
a. Supported for the HP Designjet 510 but not for the 510ps
J7934A
HP Jetdirect 630n IPv6 Gigabit Ethernet J7997G
HP Jetdirect IPv6/IPsec Gigabit Ethernet J7961A
USB print servers HP Jetdirect ew2400 802.11g Wireless J7951G
HP Jetdirect en1700 IPv6, Fast Ethernet J7988G
Spindle 610 mm - 24 inch C2388A
1067 mm - 42 inch C2389A
Stand 610 mm - 24 inch