The EnGenius EGS and EWS switches with SFP ports should work with most SFP transceiver modules except for proprietary or vendor-locked SFP modules.
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Below is a list of SFP modules tested to work with EnGenius switches:

D-Link
DEM-311GT E1
DEM-310GT D1
DEM-314GT C1/D1
DEM-315GT D1
DEM-310GT E1
DEM331R A1
DEM-330R A1

Coretek
CT-0155NSP-MB2L
CT-0155TBP-MB5L
CT-0155TSP-MB5L

Finisar
FCLF-8521-3
FTRT8519P1BNL

E2O
EM125-LP3TA-MT

JDS
JSM-21S3AA3

Apacopto
KS38-C3S-TC-N
KS38-C3L-TC-N
LS38-A3S-TC-N

For SFP Transceiver specifications, please check out article “Compatible SFP transceiver specifications (Connector type, Wavelength, Fiber type)“.