Alwong 10 PCS 10GBASE-T SFP+ Transceiver, Multi-Rate 2.5/5/10G SFP+ to RJ45 Copper Module Compatible with Cisco SFP-10G-T-S, Ubiquiti UniFi UF-RJ45-10G, Meraki, MikroTik S+RJ10, Netgear, D-Link etc.

10Gb SFP+ RJ45, 30m:
ASF-10G-T-RTL8261 Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA).
They are compatible with the 10Gbase-T /5Gbase-T / 2.5G base-T standards as specified in IEEE Std 802.3.
ASF-10G-T-RTL8261 uses the SFP's RX_LOS (must be pulled up on host) pin for link indication. If pull up or open SFP's TX_DISABLE pin, PHY IC be reset.

Support 10Gbase-T / 5Gbase-T / 2.5G base-T on line port
Support 10Gbase-R on host port
Hot-pluggable SFP footprint
Compact RJ-45 connector assembly
RoHS compliant and lead-free
Single + 3.3V power supply
10 Gigabit Ethernet over Cat 6a cable
Ambient Operating temperature: 0°C to +70°C
+.
The ASF-10G-T-RTL8261 has an input voltage range of + 3.3V +/- 5%. The 4V maximum voltage is not allowed for continuous operation.
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MOD_DEF (1) (SCL) and MOD_DEF (2) (SDA), are open drain CMOS signals (see section VII, "Serial Communication Protocol"). Both MOD_DEF (1) and MOD_DEF (2) must be pulled up to host_Vcc.
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All high-speed signals are AC-coupled internally.

Automatic crossover detection is enabled. External crossover cable is not required.

All WINTOP SFPs support the 2-wire serial communication protocol outlined in the SFP MSA. These SFPs use an MCU, can be accessed with address of A0h.