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Small rectangular SFP transceiver with a silver metal body and an RJ45 port on one end

STARTECH

STARTECH MASFP1GBTXST SFP transceiver 100m 1Gbps RJ45

SKU CH-A9J2-5AS3V MPN MASFP1GBTXST

Copper SFP transceiver provides 1 Gbps RJ45 connectivity up to 100 m and is fully compatible with Cisco Meraki MA-SFP-1GB-TX

  • Port count1 - RJ-45 Female
  • Product typeTransceiver
  • Supported standardsIEEE 802.3 10BASE-T IEEE 802.3ab 1000BASE-T IEEE 802.3u 100B
  • Fiber modeMulti Mode
  • Supported protocolsTCP/IP
  • Maximum range100 m (328 ft)
  • Guaranteed 100 % Cisco Meraki MA-SFP-1GB-TX compatibility ensures drop-in replacement
  • Hot-swappable design allows module changes without network downtime
  • Low power draw under 1.3 W reduces switch thermal load
  • 100 m reach over copper RJ-45 covers standard office runs
  • MSA-compliant SFP form factor fits any compliant port

Copper SFP for Meraki 1GbE links

The STARTECH MASFP1GBTXST is a hot-swappable SFP transceiver that provides a single RJ-45 copper port for 1GbE connectivity. It operates at 10/100/1000 Mbps over standard twisted-pair cabling up to 100 m. The module is 100% compatible with Cisco Meraki MA-SFP-1GB-TX and complies with MSA standards for broad switch interoperability. It draws less than 1.3 W and requires no Digital Diagnostics Monitoring.

Network teams standardising on Meraki gear

This transceiver suits administrators who need a reliable copper uplink for Meraki switches or routers without paying OEM list prices. It fits any MSA-compliant SFP slot, so it also works in multi-vendor environments where a 100 m RJ-45 link is required. Buyers who need fibre connectivity, 10 GbE speeds, or Digital Diagnostics Monitoring should look at other modules.

100 m reach on copper at 1 Gbps

The decisive specification is the 100 m maximum transfer distance over RJ-45 copper at 1 Gbps. This defines the cable run limit for desk, server or aggregation links. If your topology demands longer runs, fibre SFPs are required; if shorter runs suffice, this module delivers full line-rate performance within that bound.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $41.99
Cheaper than about 78% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameStarTech.com
Model nameMASFP1GBTXST
Product typeTransceiver
Performance
Transfer speed1 Gbit/s
Connectivity
Supported standardsIEEE 802.3 10BASE-T
IEEE 802.3ab 1000BASE-T
IEEE 802.3u 100BASE-TX
Fiber modeMulti Mode
Supported protocolsTCP/IP
Maximum range100 m (328 ft)
Ports & slots
Port count1 - RJ-45 Female
Size & build
Shipping weight0.05 kg
Package size150 × 89 × 33 mm
In the box
In the box1 - SFP transceiver
Environment & compliance
Temperature rangeOperating Temperature: 0 degree C to 70 degree C (32 degree F to 158 degree F)
Storage Temperature: -40 degree C to 85 degree C (-40 degree F to 185 degree F)
Humidity range5 to 95% RH

Questions about this item

How do I install the MASFP1GBTXST SFP transceiver and what step do people often miss?

Insert the module into an SFP port until it clicks, then connect an RJ45 patch cable; the step often missed is removing the dust caps from both the transceiver and the cable before seating them.

What maintenance or replacement will this transceiver need over time?

The module has no moving parts and a rated MTBF of 4655371 hours; routine maintenance is limited to keeping the RJ45 port clean and reseating the unit if link errors appear.

What limit appears first when the transceiver runs continuously at full load?

The operating temperature ceiling of 70 °C is the first sustained-use limit; power draw stays below 1.3 W, so thermal headroom in the host chassis determines long-term stability.

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