Doepfer A-141-2V VCADSR / VCLFO is an envelope module for modular synthesizers in Eurorack format. It can also be used as a CV-controllable LFO. The module has a common control input for all three times, a range switch, an inverted output and an additional output that can be voltage controlled in level. Additionally there are digital outputs for End of Attack and End of Release.
Great looking module, I think Doepfers vintage black modules look so smart I wish they did all there modules in vintage. Performance wise it's great. All parameters are controllable via CV or manually. Nice little toggle switch to change the range of time and having an EOA plus an EOR makes the module super useful. The only thing I can find that might be a problem is the size, at 14hp its quiet large for an ADSR but it looks so good and is so functional I can see past that.
Offers a lot of functionality with voltage control over each A, D, S and R stages. Also has EOA and EOR outs. Tight envelopes at x1 settings, x10 gives medium and x100 gives pretty long (haven't timed it but with release high (around 9) on x100 setting I went and made a cup of tea and it was still going when I came back. Feels quite study and enough space for access (I am not so keen on really tight panel layouts).
Note - it's quite a deep module so posibly not an option for cases that aren't so deep. I've only used it for a few days so haven't explored every aspect in depth, but so far it has been a good option for what I have used it for.