These lasers stopped being made in sometime arround 2003. I don't expect to see new lasers. I refurb all mine myself with parts taken from other lasers. A certain type of HD7 laser (the earliest model) has a laser chip which works perfectly on the 400B laser. The newer HD7 laser chips will work happy on the 400C heads with the green flexible board.
Just to mention, there is only two kinds of laser chips but there are several types of lasers. So doing the refurb is a bit tricky. You have a lot of small details to pay attention to.
The only problem with refurb laser units is that you never know how good the laser chip is.
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)