A metal supported solid oxide fuel cell unit comprising: a) a metal substrate defining first and second opposed surfaces (65a, 65b), wherein at least one solid oxide fuel cell is disposed on said second surface of said metal substrate; b) a metal spacer, which defines first and second opposed surfaces (31, 32), said metal spacer comprising: (i) an external perimeter, (ii) an at least one fuel inlet internal perimeter (33a, 33b) defining a fuel inlet port (34a, 34b), (iii) at least one cut-out internal perimeter defining a cut-out (40a, 40b), and (iv) at least one fuel outlet internal perimeter (33c, 33d) defining a fuel outlet port (34c, 34d), wherein said first surface of said metal substrate is attached to said second surface of said metal spacer; and c) a metal interconnect plate which defines first and second opposed surfaces (21,22), said second surface of said metal interconnect plate sealingly attached to said first surface of said metal spacer, wherein: a fuel inlet port volume is defined between said first surface of said metal substrate, each at least one fuel inlet internal perimeter (33a, 33b) of said metal spacer, and said second surface of said metal interconnect plate, a cut-out volume is defined between said first surface of said metal substrate, said at least one cut-out internal perimeter of said metal spacer, and said second surface of said metal interconnect plate, and a fuel outlet port volume is defined between said first surface of said metal substrate, each at least one fuel outlet internal perimeter (33c, 33d) of said metal spacer, and said second surface of said metal interconnect plate, wherein said metal interconnect plate comprises a plurality of bridge portions acting as fluid flow bridges or channels between adjacent ones of the above three volumes (35a, 35b, 35c), at least one of the bridge portions defining a fluid flow path from said at least one fuel inlet port volume to said at least one cut-out volume and at least a second one of the bridge portions defining a fluid flow path from said at least one cut-out volume to said at least one fuel outlet port volume. a) a metal substrate defining first and second opposed surfaces (65a, 65b), wherein at least one solid oxide fuel cell is disposed on said second surface of said metal substrate; b) a metal spacer, which defines first and second opposed surfaces (31, 32), said metal spacer comprising: (i) an external perimeter, (ii) an at least one fuel inlet internal perimeter (33a, 33b) defining a fuel inlet port (34a, 34b), (iii) at least one cut-out internal perimeter defining a cut-out (40a, 40b), and (iv) at least one fuel outlet internal perimeter (33c, 33d) defining a fuel outlet port (34c, 34d), wherein said first surface of said metal substrate is attached to said second surface of said metal spacer; and (i) an external perimeter, (ii) an at least one fuel inlet internal perimeter (33a, 33b) defining a fuel inlet port (34a, 34b), (iii) at least one cut-out internal perimeter defining a cut-out (40a, 40b), and (iv) at least one fuel outlet internal perimeter (33c, 33d) defining a fuel outlet port (34c, 34d), c) a metal interconnect plate which defines first and second opposed surfaces (21,22), said second surface of said metal interconnect plate sealingly attached to said first surface of said metal spacer, a fuel inlet port volume is defined between said first surface of said metal substrate, each at least one fuel inlet internal perimeter (33a, 33b) of said metal spacer, and said second surface of said metal interconnect plate, a cut-out volume is defined between said first surface of said metal substrate, said at least one cut-out internal perimeter of said metal spacer, and said second surface of said metal interconnect plate, and a fuel outlet port volume is defined between said first surface of said metal substrate, each at least one fuel outlet internal perimeter (33c, 33d) of said metal spacer, and said second surface of said metal interconnect plate,