What is the Sandstone 3HE11904AA?
The Sandstone 3HE11904AA is a SFP optical transceiver module, listed by the manufacturer as "Alcatel-Lucent Compatible 1G SFP, 10/100/1000BASE-T, 100m COPPER RJ45, NO DDM, I-Temp, GOLD Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.