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81Y1533 — Network Technical Data

IBM · SFP TRANSCEIVER
WHAT YOU NEED TO KNOW
SR = Short Range (multimode, 300m) | LR = Long Range (single-mode, 10km) DOM = Digital Optical Monitoring — most enterprise SFPs support it
MATCH ALL THREE: Speed + Wavelength + Brand compatibility
PRODUCT OVERVIEW

IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - SBB. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
81Y1533
SPECIFICATIONS
Part Number81Y1533
ManufacturerIBM
Capacity40GB
FITS THESE MACHINES
Lenovo System x iDataPlex dx360 Server M3
Lenovo System x x3550 M3
Lenovo System x x3650 M3
Lenovo System x x3690 X5
Lenovo System x3755 M3
Lenovo System x3850 X5
COMPONENT DIAGRAM
BAIL LATCH 10G SFP+ 850nm · SR (MMF, 300m) DOM: Digital Optical Monitoring TX RX LC DUPLEX 20-PIN EDGE CONNECTOR ~56.5 mm ~13.4mm SFP+ TRANSCEIVER | 10G | 850nm | SR (MMF, 300m) Hot-swappable | LC duplex fiber | DDM/DOM supported TITLE SFP+ XCVR PN 81Y1533 MFR IBM IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-
KEY FEATURES
•
40GB Capacity
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
SUBSTITUTES & CROSS-REFERENCES 3
81Y1531CompatiblePARTNER
IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - Option
compatible
81Y1532CompatiblePARTNER
IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - P/N
compatible
81Y1534CompatiblePARTNER
IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - SBB
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 3
81Y1531SUBSTITUTE
IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - FRU
IBM
81Y1532SUBSTITUTE
IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - FRU
IBM
81Y1534SUBSTITUTE
IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 81Y1533?
81Y1533 is a IBM InfiniBand QDR 40Gb QSFP 1-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - SBB manufactured by IBM.
What parts can replace 81Y1533?
There are 3 known substitutes for 81Y1533: 81Y1531, 81Y1532, 81Y1534. Substitute compatibility should be verified for your specific system.
Is 81Y1533 still available?
81Y1533 is currently Unknown.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.