128MB /256MB /

512MB DDR 

100pin DIMM 

for LaserJet 4250 /

4350 /4345 /9040 /

9050

16MB~256MB

 SDRAM 100pin

 DIMM for 

FS-1800 /3800 /

8000C /1020D /1920 

/9120DN

16MB~256MB

 SDRAM 100pin

 DIMM for Optra

 C710 /T620 /T622

 /E320 /E322 /W812

32MB / 64MB SDRAM for Docuprint 3620, 3820, 3160

64MB~256MB

RAM low profile for Phaser 3428D, 3428DN, 3435DN