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81Y1537 — IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - Option

IBM · SFP TRANSCEIVER
PRODUCT OVERVIEW

81Y1537: IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - Option. It is cited to fit LENOVO System x IBM System x3650 M4, LENOVO System x System x iDataPlex dx360 Server M3, LENOVO System x System x x3550 M3 and 9 more listed machines.

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

SPECIFICATIONS
Part Number81Y1537
ManufacturerIBM
Capacity40GB
FITS THESE MACHINES
Lenovo System x IBM System x3650 M4
Lenovo System x iDataPlex dx360 Server M3
Lenovo System x x3550 M3
Lenovo System x x3650 M3
Lenovo System x x3690 X5
Lenovo System x3530 M4
Lenovo System x3550 M4
Lenovo System x3630 M3
Lenovo System x3630 M4
Lenovo System x3650 HD M4
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 81Y1537 MFR IBM IBM InfiniBand QDR 40Gb QSFP 2-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 4
95Y3750CompatiblePARTNER
IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 Controller - Option
compatible
81Y1536CompatiblePARTNER
IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 Controller - P/N
compatible
95Y3767CompatiblePARTNER
IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 Controller - SBB
compatible
81Y1535CompatiblePARTNER
IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - Option
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 3
95Y3750SUBSTITUTE
IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 Controller - FRU
IBM
95Y3767SUBSTITUTE
IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 Controller - FRU
IBM
81Y1536SUBSTITUTE
IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 Controller - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 81Y1537?
81Y1537 is a IBM InfiniBand QDR 40Gb QSFP 2-Port PCI-E-2.0x8 Mellanox ConnectX-2 VPI Controller - Option manufactured by IBM.
What parts can replace 81Y1537?
There are 4 known substitutes for 81Y1537: 95Y3750, 81Y1536, 95Y3767 and 1 more. Substitute compatibility should be verified for your specific system.
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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.