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 i7-3770 | SR0PK(E1) | 4 | 3.4 GHz | 3/4/5/5 | 4 × 256 KB | 8 MB | HD Graphics 4000 | 650–1150 MHz | LGA 1155 | DMI 2.0 | April 2012 | CM8063701211600BX80637I73770BXC80637I73770 | $278 |
| Core i7-3770K | SR0PL(E1) | 4 | 3.5 GHz | 2/3/4/4 | 4 × 256 KB | 8 MB | HD Graphics 4000 | 650–1150 MHz | LGA 1155 | DMI 2.0 | April 2012 | CM8063701211700BX80637I73770KBXC80637I73770K | $313 |
| low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power |
| Core i7-3770S | SR0PN(E1) | 4 | 3.1 GHz | 4/5/7/8 | 4 × 256 KB | 8 MB | HD Graphics 4000 | 650–1150 MHz | LGA 1155 | DMI 2.0 | April 2012 | CM8063701211900BX80637I73770S | $278 |
| 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 i7-3770T | SR0PQ(E1) | 4 | 2.5 GHz | 6/9/11/12 | 4 × 256 KB | 8 MB | HD Graphics 4000 | 650–1150 MHz | LGA 1155 | DMI 2.0 | April 2012 | CM8063701212200BX80637I73770T | $278 |
Question:
Which Release date has a sSpec number of sr0pk(e1)?
Answer:
April 2012