Check the listing for details. Spirent AX/4000 IP (layer 3) Gigabit Ethernet SFP Interface 401325 Powerpuff. Condition: Used. Listed at 47.99 USD. (1) Spirent 401325 Interface. P/N: 401325. Powerpuff board. IP (layer 3) Gigabit Ethernet SFP Interface card. Se habla espanol! CDN Systems LLC, DBA Doug Deals, is not an authorized distributor or affiliated with the manufacturer of this product.