Discontinued CX (listed old to new):
Corsair CX400 (CMPSU-400CX): VERY old (2008!), based off Sesaonic S12II. Double Forward, no DC to DC (Group Regulated). Rated at 40°C. 80 PLUS White. Ball bearing fan. Three year warranty.
Corsair CX430 (CMPSU-430CX): Old (around 2011), based off CWT DSAII. Double Forward, no DC to DC (Group Regulated). Rated at 30°C. No 80 PLUS. Sleeve bearing fan. Two year warranty.
Corsair CX500 (CMPSU-500CX): Old, based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. No 80 PLUS. Sleeve bearing fan. Two year warranty.
Corsair CX600 (CMPSU-600CX): Old, based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. No 80 PLUS. Sleeve bearing fan. Two year warranty.
Corsair CX430V2 (CMPSU-430CXV2): Old (around 2012), based off CWT DSAII. Double Forward, no DC to DC (Group Regulated). Rated at 30°C. 80 PLUS White. Sleeve bearing fan. Three year warranty.
Corsair CX500V2 (CMPSU-500CXV2): Old (around 2012), based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. 80 PLUS White. Sleeve bearing fan. Three year warranty.
Corsair CX600V2 (CMPSU-600CXV2): Old (around 2012), based off CWT DSAII. Double Forward, no DC to DC. Rated at 30°C. 80 PLUS White. Sleeve bearing fan. Three year warranty.
Corsair CX750 (CP-9020015): Old (around 2012), based off CWT PUQ-B. Double forward with DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.
Corsair CX430 (CP-9020046): Old (around 2013), based off CWT DSAIII. Beefed up +12V (32A vs. 28A), but still DF with no DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.
Corsair CX500 (CP-9020047): Old, based off CWT DSAIII. Beefed up +12V (38A vs. 34A), but still DF with no DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.
Corsair CX600 (CP-9020048): Old, based off CWT DSAIII. Beefed up +12V (46A vs. 40A), but still DF with no DC to DC. Rated at 30°C. 80 PLUS Bronze. Sleeve bearing fan. Three year warranty.
Current CX:
Corsair CX450 (CP-9020120, RPS0063): Current generation. Never was a V1, V2, 2017 or "green label" editions. Made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Bronze. Five year warranty.
Corsair CX450 (CP-9020120, RPS0053): Current generation. Never was a V1, V2, 2017 or "green label" editions. Made by CWT. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Bronze. Five year warranty.
Corsair CX550 (CP-9020121, RPS0064): Current generation. Made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.
Corsair CX550 (CP-9020121, RPS0054): Current generation. Made by CWT. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.
Corsair CX650 (CP-9020122, RPS0065): Current generation. Made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.
Corsair CX650 (CP-9020122, RPS0055): Current generation. Made by CWT. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Bronze. Five year warranty.
Corsair CX750 (CP-9020123, RPS0066): Current generation. Made by Great Wall. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Silver (but advertised as Bronze). Five year warranty.
Corsair CX750 (CP-9020123, RPS0056): Current generation. Made by CWT. LLC resonant mode front end with DC to DC. Rated at 40°C. 80 PLUS Bronze. Five year warranty.
Discontinued CX-M (listed old to new):
Corsair CX430M (CP-9020058): Modular version of CP-9020046.
Corsair CX500M (CP-9020059): Modular version of CP-9020047.
Corsair CX600M (CP-9020060): Modular version of CP-9020048.
Corsair CX750M (CP-9020061): From 2015. Same CP part number as new CX-750M, but has “CX” and “M” in GREEN. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Three year warranty.
Corsair CX850M (CP-9020099): From 2015. Same CP part number as new CX-850M, but has “CX” and “M” in GREEN. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Three year warranty.
Current CX-M:
Corsair CX750M (CP-9020061): Current version as of 2016. Same CP part number as previous CX-750M, but label is GRAY with “CX750M” in black. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze.  Rifle bearing fan. Five year warranty.
Corsair CX850M (CP-9020099): Current version as of 2016. Same CP part number as previous CX-850M, but label is GRAY with “CX850M” in black. Based off CWT PUQ-B. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze.  Rifle bearing fan. Five year warranty.
Corsair CX450M (CP-9020101): Current version as of 2016. Made by CWT. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.
Corsair CX550M (CP-9020102): Current version as of 2016. Made by CWT. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.
Corsair CX650M (CP-9020103): Current version as of 2016. Made by CWT. Double forward with DC to DC. Rated at 40°C. 80 PLUS Bronze. Rifle bearing fan. Five year warranty.
Corsair CX750M “2017 Edition” (CP-9020154): MOSFETs upgraded to Infineon. After this was released, CP-9020061 was also upgraded to Infineon MOSFETs, but the part number was kept the same so retailers didn’t have to change their SKU sheets, websites, etc. In some regions, both CP-9020154 and CP-9020061 co-exist and are identical inside and out.
Corsair CX850M “2017 Edition” (CP-9020157): MOSFETs upgraded to Infineon. After this was released, CP-9020099 was also upgraded to Infineon MOSFETs, but the part number was kept the same so retailers didn’t have to change their SKU sheets, websites, etc. In some regions, both CP-9020157 and CP-9020099 co-exist and are identical inside and out.