The kit includes Cat5e SF/UTP AWG 26.  Category cable meeting or exceeding this spec is recommended.  There are four elements to consider:

• Category Class: Cat5e, Cat6, Cat6a, Cat7 and so forth
• Shielding: SF/UTP or SFTP
• AWG: 26, 24, 23 and so forth.
• Compliance Requirements: Plenum or local building/safety codes

By Example: Supported:  Cat6a SFTP AWG 24

Unsupported: Cat5 UTP AWG 28