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- Description
- Specifications
81Y3520 is the Intel X710 2x10GbE SFP+ Adapter for System x, feature code AS73, a standard PCIe card with two SFP+ cages.
It is a low-profile card; Lenovo ships the standard PCIe X710 adapters with a full-height bracket attached and a low-profile bracket in the box. Transceivers and DAC cables are not included and must be ordered separately.
Performance and virtualization per the X710 guide: wire-rate throughput on payloads above 64 bytes, latency of about 7 microseconds (about 3 with kernel bypass), SR-IOV with up to 128 virtual functions, VXLAN, NVGRE and GENEVE, plus Energy Efficient Ethernet on the PCIe 3.0 x8 host interface.
The x3650 M4 BD product guide also lists 81Y3520 among its 10 GbE options, with up to two per server.
Lenovo's X710 guide lists System x support for the x3850 X6/x3950 X6 (6241) with E7 v2, v3 or v4, and for E5-2600 v2 or E5-2400 v2 versions of the x3500 M4, x3550 M4, x3630 M4 and x3650 M4, plus the x3650 M4 BD and x3750 M4 (8753).
Fit check: a free PCIe slot in a listed server and two SFP+ optics or DACs. 94Y5200 is the four-port ML2 X710, and 49Y7960 is the earlier X520 dual-port SFP+ card.
| 81Y3520 Specs | |
| Part number | 81Y3520 |
| Feature code | AS73 |
| Controller family | Intel X710 |
| Ports | 2x 10GbE SFP+ (empty cages) |
| Host interface | PCIe 3.0 x8 |
| Form factor | low-profile PCIe (both brackets in box) |
| Latency | ~7 µs standard, ~3 µs kernel bypass |
| SR-IOV | up to 128 VFs |
| Jumbo frames | 9,728 bytes |
| Max per x3650 M4 BD | 2 |