These cases do NOT take MB!Disk Array Chassis 4U Disk-Array Beige Rackmount, 10 bays, 3 fans, NO Power(Does NOT take MB!)Code:RMS-4APrice: $68.00 Quantity in Basket: none 4U with 8 x 5.25" open bays for Disk Array, black only, NO PS(takes PS/2 PS)Code:CK978BPrice: $169.00 Quantity in Basket: none 4U, 9 x 5.25" open bays, for Disc Array JBOD appliactions ONLY(does NOT take MB)Code:E490Price: $230.00 Quantity in Basket: none