Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Model number | sSpec number | Cores | Frequency | Turbo | L2 cache | L3 cache | GPU model | GPU frequency | Socket | I/O bus | Release date | Part number(s) | Release price ( USD ) |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power |
| Core i7-3520M | SR0MT(L1)SR0MU(L1) | 2 | 2.9 GHz | 5/7 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 650–1250 MHz | SocketG2 BGA-1023 | DMI 2.0 | June 2012 | AW8063801028703AV8063801028803 | $346 |
| Core i7-3540M | SR0X6(L1)SR0X8(L1) | 2 | 3 GHz | 5/7 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 650–1300 MHz | SocketG2BGA-1023 | DMI 2.0 | January 2013 | AW8063801108900AV8063801109800 | $346 |
| low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded |
| Core i7-3555LE | SR0R5(L1)SR0T5(L1) | 2 | 2.5 GHz | 5/7 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 550–1000 MHz | BGA-1023 | DMI 2.0 | June 2012 | AV8063801116902AV8063801116903 | $360 |
| ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power |
| Core i7-3517U | SR0N6(L1) | 2 | 1.9 GHz | 9/11 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 350–1150 MHz | BGA-1023 | DMI 2.0 | June 2012 | AV8063801057605 | $346 |
| Core i7-3537U | SR0XG(L1) | 2 | 2 GHz | 9/11 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 350–1200 MHz | BGA-1023 | DMI 2.0 | January 2013 | AV8063801119700 | $346 |
| Core i7-3667U | SR0N5(L1) | 2 | 2 GHz | 10/12 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 350–1150 MHz | BGA-1023 | DMI 2.0 | June 2012 | AV8063801057405 | $346 |
| Core i7-3687U | SR0XH(L1) | 2 | 2.1 GHz | 10/12 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 350–1200 MHz | BGA-1023 | DMI 2.0 | January 2013 | AV8063801119903 | $356 |
| Core i7-3689Y | SR12R(L1) | 2 | 1.5 GHz | 9/11 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 350–850 MHz | BGA-1023 | DMI 2.0 | January 2013 | AV8063801378203 | $362 |
| ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded |
| Core i7-3517UE | SR0R2(L1)SR0T6(L1) | 2 | 1.7 GHz | 9/11 | 2 × 256 KB | 4 MB | HD Graphics 4000 | 350–1000 MHz | BGA-1023 | DMI 2.0 | June 2012 | AV8063801149401AV8063801149402 | $330 |
Question:
what is the i/o bus when the sspec numebr is sr0n5(l1)?
Answer:
DMI 2.0