Lenovo 90Y9424 Compatible 1000BASE-LX SFP

EdgeOptic's 90Y9424 compatible is a Lenovo-coded version of the EdgeOptic 1.25G-SFP-20D multi-vendor 1000BASE-LX 20 km transceiver. Lenovo lists the 90Y9424 at 10 km reach for the Flex System BNT SFP networking range carried over from the IBM x86 server portfolio; the EdgeOptic compatible covers the full 20 km reach class of the underlying 1.25G-SFP-20D, so it qualifies for both the OEM 10 km Flex System use case and extended 20 km single-mode deployments on a single coded build.

The EdgeOptic 1.25G-SFP-20D delivers IEEE 802.3z 1000BASE-LX on 9/125 µm single-mode fiber via duplex LC connectors at 1310 nm, with a 1260 to 1360 nm wavelength band. Transmit power is −9 to −3 dBm and receiver sensitivity is −24 dBm with a −3 dBm overload limit, giving 15 dB of link budget that extends practical reach to 20 km on standard G.652 fiber. The transceiver runs Gigabit Ethernet at 1.25 Gbps over the 0 to 70 °C commercial temperature range, draws power from a +3.3 V single supply, and exposes DDM/DOM telemetry so Flex System and System x switch firmware can read live TX power, RX power, bias current, supply voltage, and module temperature.

The 90Y9424 part number originates in the IBM 90Y-prefix ordering convention used for x86 server accessories carried over to Lenovo when the IBM x86 server business moved to Lenovo. The module is widely listed as a Lenovo BNT (Blade Network Technologies) SFP LX transceiver, with deployment context in Flex System chassis and BNT-family 1Gb networking modules in the Flex System chassis line. Both Lenovo and IBM brand searches can surface the same hardware under the 90Y9424 ordering code. Confirm the part number suffix on the original SFP before swapping the 1310 nm LX SMF module for a different reach or media class. For the authoritative chassis-by-chassis support matrix, refer to Lenovo ServerProven.

This 90Y9424 compatible is one EEPROM build of the EdgeOptic 1.25G-SFP-20D platform, a single 1000BASE-LX 1310 nm 20 km SMF transceiver that ships under multiple vendor codings. The hardware is INF-8074i SFP MSA compliant, hot-pluggable, CE marked, RoHS compliant, and Class 1 laser safe per IEC 60825-1 and FDA 21 CFR 1040, so the EdgeOptic catalog covers the same optical build under Cisco, Juniper, Arista, HPE, Hirschmann, PLANET, Brocade, Check Point, and other vendor ordering codes for 1000BASE-LX 20 km SMF.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For Lenovo Flex System and System x BNT SFP fit checks, IBM legacy part-number sourcing, or volume quotes, contact our sales team.