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59Y1946 — 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 Cable DAC 10GbE SFP+ Passive Copper 7m Molex - Option. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
59Y1946
SPECIFICATIONS
Part Number59Y1946
ManufacturerIBM
Interface10GbE
Capacity10GB
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 x3550 M4
Lenovo System x3630 M3
Lenovo System x3630 M4
Lenovo System x3650 HD M4
Lenovo System x3750 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 59Y1946 MFR IBM IBM Cable DAC 10GbE SFP+ Passive Copper
KEY FEATURES
•
10GbE Interface
•
10GB Capacity
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
SUBSTITUTES & CROSS-REFERENCES 1
59Y1944CompatiblePARTNER
IBM Cable DAC 10GbE SFP+ Passive Copper 7m Molex - Option
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 1
59Y1944SUBSTITUTE
IBM Cable DAC 10GbE SFP+ Passive Copper 7m Molex - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 59Y1946?
59Y1946 is a IBM Cable DAC 10GbE SFP+ Passive Copper 7m Molex - Option manufactured by IBM.
What parts can replace 59Y1946?
There is 1 known substitute for 59Y1946: 59Y1944. Substitute compatibility should be verified for your specific system.
Is 59Y1946 still available?
59Y1946 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.