The 3,500-capacity ground on Bracken Moor in Stocksbridge, Sheffield, was the venue for the Blades' 2-1 Round of 16 victory over Derby County earlier this week.
Kick-off will now be 7pm, rather than the previously advertised 2pm, on Friday, 6th April.
A result must be achieved on the night, with extra time and penalties if required.
Evo-Stik South side Stocksbridge Park Steels are perhaps best known as one of England striker Jamie Vardy's former clubs, while ex-Newcastle hero Chris Waddle played for them towards the end of his career.
You can view the Magpies' full under-23 fixture list here.