S+23/32LC10D SFP+ (10Gbit) module kit
pair of SFP+ (10Gbit) modules, 10km, for single optical cable
Manufacturer part number:
Bidirectional SFP+ 10G module kit. Kit contains two SFP+ modules that can be used as pair to achieve operating data rate up to 10Gbps for distances up to 10km on single optical cable.
Product info - sfp_all.pdf