Part Number: 100RC21S-4A2AK (No description) Part Number: 100RC21S4A5A4L (No description) Part Number: 100RC21S-4A5AB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4A5BB (Oem only 6-8wks authorized line.) Part Number: 100RC21S4C2AR (Ne) Part Number: 100RC21S-4E1AB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4E1BB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4E1CB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4E6AB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4E6BB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4E6CB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4F1AB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4F1BB (Oem only 6-8wks authorized line.) Part Number: 100RC21S-4F1CB (Oem only 6-8wks authorized line.)