Amiga 2000 ram

[mechy]

This is the fastest ones I can find listed http://www.ebay.ca/itm/18PC-NEW-M5M44256AP-10-MITSUBISHI-256x4-100NS-DRAM-/131258440234?hash=item1e8f9cda2a:g:VAMAAOSwbqpT2~vY
They are 100ns
The rest all seem to be between 70 and 80ns

i have 1mx4's in dips and   think i have 256x4's in 80ns or less,i can check if you like.  just let me know.
your probably get them cheaper off ebay though.

i would recommend getting kipper2's setup or a gvp hcII+8 scsi controller, it supports luns well and is faster than the 2091...also holds 8mb of 30 pin simms that are cheap. grab a 030 accelerator if you can afford it.