Mellanox MTXFP-SR — 10Gb XFP 10GBASE-SR Class 850nm Multimode Transceiver
Technical Identity
The MTXFP-SR (SKU MTXFP-SR) is a 10 Gb/s XFP optical transceiver marked as a short-reach 850nm multimode module. This exact OPN is not documented in current NVIDIA / Mellanox transceiver literature — the documented Mellanox 10GbE short-reach optic is the SFP+ MFM1T02A-SR, which is a different form factor. Because the OPN cannot be verified against vendor documentation, this page describes only the 10GBASE-SR XFP class: 850nm nominal wavelength, multimode fibre, duplex LC. The exact OPN, variant and vendor coding must be confirmed from the unit label before ordering. Legacy / end-of-life form factor. Condition: Refurbished.
Specifications
Brand: NVIDIA Mellanox (legacy Mellanox-era marking; Mellanox was acquired by NVIDIA in 2020)
Model / MPN: MTXFP-SR — exact OPN not vendor-documented; confirm from unit label
Product type: Pluggable optical transceiver module
Form factor: XFP (10 Gigabit Small Form Factor Pluggable, per the XFP MSA)
Optical class: 10GBASE-SR (IEEE 802.3ae short reach)
Nominal wavelength: 850nm
Fibre type: Multimode fibre (MMF)
Connector: Duplex LC
Nominal data rate: 10 Gb/s (10 Gigabit Ethernet)
Reach (10GBASE-SR class): approximately 300m over OM3; vendor documentation for the class also cites up to 400m over OM4. Shorter on OM1 / OM2 — confirm against your installed fibre grade.
Electrical interface: serial 10 Gb/s, per the XFP MSA
Digital diagnostics: not verified for this OPN — confirm from the module EEPROM in your host
Lifecycle: Legacy / end-of-life form factor
Condition: Refurbished
Engineering Context
XFP was the first widely deployed pluggable 10 Gb/s form factor, using a single serial 10 Gb/s electrical lane rather than the four-lane XAUI interface of the earlier XENPAK and X2 modules. It was displaced by SFP+, so XFP cages are now found almost exclusively on 2006 to 2012 era switches, routers and line cards. The SR variant is the 850nm multimode short-reach member of the family.
Use Cases
Spares and RMA replacement for installed 10G platforms that still use XFP cages.
Short-reach 10 Gigabit Ethernet links over duplex LC multimode fibre within a building or data hall.
Lab and test benches maintaining legacy 10G XFP equipment.
What This Is NOT
NOT an SFP+ module and NOT an SFP module. XFP is a different mechanical and electrical form factor. An XFP module will not fit an SFP+ or SFP cage, and no adapter makes it fit. Verify your host port is an XFP cage before ordering.
NOT a XENPAK, X2 or XPAK module. Those are separate 10G form factors with different mechanics and a four-lane XAUI electrical interface.
NOT a single-mode or long-reach optic. 10GBASE-SR is an 850nm multimode short-reach class and will not interoperate with 10GBASE-LR, ER or ZR optics on single-mode fibre.
NOT a copper module. This is a duplex LC optical transceiver — not a DAC, not an AOC, not 10GBASE-T.
NOT a 25G, 40G or 100G module. XFP is a 10 Gb/s serial form factor.
NOT a verified vendor-documented OPN. MTXFP-SR does not appear in current NVIDIA / Mellanox transceiver documentation.
NOT supplied with patch cords, cassettes, cage hardware or switch licences.
Compatibility & Hard Constraints
Cage type is the hard constraint. The host port must be an XFP cage. XFP is not SFP+ and not SFP.
Typical platforms: 10 Gb/s switches, routers and line cards of the XFP era. Modern 10G equipment uses SFP+ instead.
Fibre plant: duplex LC multimode; approximately 300m on OM3 for the 10GBASE-SR class, shorter on OM1 / OM2. Confirm reach against your fibre grade and link budget.
Link partner: the far end must also be a 10GBASE-SR 850nm multimode optic.
Vendor coding: many platforms enforce EEPROM vendor checks. Confirm your switch accepts this module’s coding.
Pre-deployment verification: exact OPN on the unit label, cage type, fibre grade and length, host vendor-coding policy, and whether digital diagnostics are required.
Frequently Asked Questions (FAQ)
Q. What is the Mellanox MTXFP-SR?
The MTXFP-SR is a 10 Gb/s XFP optical transceiver marked as a short-reach 850nm multimode module. Because this exact OPN is not documented in current NVIDIA / Mellanox literature, it is described here only as the 10GBASE-SR XFP class: 850nm, multimode fibre, duplex LC, 10 Gb/s. Confirm the exact OPN and variant from the unit label before ordering.
Q. Will the MTXFP-SR fit an SFP+ port?
No. XFP is not SFP+ and it is not SFP. XFP is a physically larger module with a different mechanical and electrical form factor and will not fit an SFP+ or SFP cage. No adapter makes an XFP module fit an SFP+ port. Verify the host port is an XFP cage before ordering.
Q. What fibre type and reach does a 10GBASE-SR XFP support?
10GBASE-SR is an 850nm multimode class on a duplex LC connector. Reach for the class is approximately 300m over OM3, with vendor documentation also citing up to 400m over OM4; OM1 and OM2 give shorter reaches. Confirm against your fibre grade and link budget.
Q. Is the MTXFP-SR part number documented by NVIDIA or Mellanox?
No. MTXFP-SR does not appear in current NVIDIA / Mellanox transceiver documentation. The documented Mellanox 10GbE short-reach optic is the SFP+ MFM1T02A-SR, a different form factor that will not fit an XFP cage. Confirm the exact OPN and variant from the unit label.
Q. Is XFP still a current form factor?
No. XFP is a legacy, end-of-life 10 Gb/s form factor displaced by SFP+. XFP cages are generally found only on 2006 to 2012 era switches, routers and line cards, and supply is secondary market.
Q. Does the MTXFP-SR support digital diagnostic monitoring?
Not verified for this OPN. Digital diagnostics are common on 10GBASE-SR XFP modules, but T.E.S IT-SOLUTIONS makes no claim of DDM support on these specific units. Confirm from the module EEPROM in your host.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
Refurbished. Each module receives a cosmetic and connector inspection and, where a matching XFP test platform is available, a link and EEPROM read check. Because the exact OPN is not vendor-documented, pricing is set conservatively and final pricing is subject to confirmation of the exact model. EU stock, global B2B shipping.
Why T.E.S IT-SOLUTIONS
EEPROM and link verification where a matching XFP test platform is available, capture of the unit label and OPN marking, connector and cosmetic inspection, anti-static packaging, EU stock. See tes-itsolutions.com.