Wishlist Quick view SIEMENS Siemens SFP991-1LD (10 pieces) 6GK5991-1AF00-8AC0 €1,822.00 SFP991-1LD (10 pieces) SCALANCE X accessory; plug-in transceiver SFP991-1LD; 1x 100 Mbit/s LC port, optical; single-mode optical up to max. 26 km 1 pack = 10 units. Datasheet: Download PDF Add to Wishlist