Delta / Nidec 40x40x56mm Fans
Lot of 8x
I think they're new, pulled from a defective server that never went into production.
The fans are currently installed in these Oracle brackets. Half are Delta and half are Nidec.
Delta GFC0412DS
4211A10R
Nidec Ultraflo
2R40W12BGCA-07A04
Oracle PN: 7013526