Intel X520 User Manual

Intel X520 and X540-T2 Dual Port 10 GbE Adapters for IBM System x 3
Supported transceivers and direct-attach cables
The Intel X520 Dual Port 10GbE SFP+ Adapter and X520 Dual Port 10GbE SFP+ Embedded Adapter
have two empty SFP+ cages that support SFP+ SR transceivers and Twinax direct attached copper
cables, as listed in Table 2 and Table 3.
Table 2. Supported SFP+ transceivers
Part number Feature code Description
Optical Transceivers
44W4408 4942 10GbE 850 nm Fiber SFP+ Transceiver (SR)
49Y4216 0069 Brocade 10Gb SFP+ SR Optical Transceiver
46C3447 5053 IBM SFP+ SR Transceiver (10Gb)
49Y4218 0064 QLogic 10Gb SFP+ SR Optical Transceiver
Table 3. Supported direct attach cables
Part number Feature code Description
Active DAC/Twinax cables
95Y0323 A25A 1m IBM Active DAC SFP+ Cable
95Y0326 A25B 3m IBM Active DAC SFP+ Cable
95Y0329 A25C 5m IBM Active DAC SFP+ Cable
Passive DAC/Twinax cables
00D6288 A3RG .5m IBM Passive DAC SFP+ Cable
90Y9427 A1PH 1m IBM Passive DAC SFP+ Cable
90Y9430 A1PJ 3m IBM Passive DAC SFP+ Cable
90Y9433 A1PK 5m IBM Passive DAC SFP+ Cable
00D6151 A3RH 7m IBM Passive DAC SFP+ Cable
Features
The Intel X520 and X540-T2 adapters have the following features:
Load balancing on multiple processors, which increases performance on multiprocessor systems by

efficiently balancing network loads across processor cores when used with Receive Side Scaling from
Microsoft or Scalable I/O on Linux.
Header Splits and Replication in Receive helps the driver focus on the relevant part of the packet

without needing to parse it.
Multiple queues allow packet handling without the waiting/buffer overflow, which provides efficient

packet prioritization.

Intel X520 Specifications

General

Brand	Intel
Model	X520
Category	Adapter
Language	English