Part Number Description
SRX550-645AP-M SRX550, AC PSU, 4G RAM, 8G CF
SRX550-645AP-M-TAA SRX550, AC PSU, 4G RAM, 8G CF, TAA
SRX550-645DP-M SRX550, DC PSU, 4G RAM, 8G CF
SRX550-645DP-M-TAA SRX550, DC PSU, 4G RAM, 8G CF, TAA
SRX550-M-SYS-JE-AC SRX550-AC-M HW & JUNOS ENHANCED (JSE)
SRX550-M-SYS-JE-DC SRX550-DC-M HW & JUNOS ENHANCED (JSE)