diff --git a/litex_boards/targets/digilent_nexys_video.py b/litex_boards/targets/digilent_nexys_video.py
index ab84b03..c257b49 100755
--- a/litex_boards/targets/digilent_nexys_video.py
+++ b/litex_boards/targets/digilent_nexys_video.py
@@ -72,7 +72,7 @@ class _CRG(Module):
 
 class BaseSoC(SoCCore):
     def __init__(self, toolchain="vivado", sys_clk_freq=int(100e6), with_ethernet=False,
-                 with_led_chaser=True, with_sata=False, vadj="1.2V", with_video_terminal=False,
+                 with_led_chaser=True, with_sata=False, sata_gen = "gen2", vadj="1.2V", with_video_terminal=False,
                  with_video_framebuffer=False, **kwargs):
         platform = nexys_video.Platform(toolchain=toolchain)
 
@@ -127,7 +127,7 @@ class BaseSoC(SoCCore):
             # PHY
             self.submodules.sata_phy = LiteSATAPHY(platform.device,
                 pads       = platform.request("fmc2sata"),
-                gen        = "gen2",
+                gen        = sata_gen,
                 clk_freq   = sys_clk_freq,
                 data_width = 16)
 
@@ -165,6 +165,7 @@ def main():
     sdopts.add_argument("--with-spi-sdcard",        action="store_true", help="Enable SPI-mode SDCard support.")
     sdopts.add_argument("--with-sdcard",            action="store_true", help="Enable SDCard support.")
     parser.add_argument("--with-sata",              action="store_true", help="Enable SATA support (over FMCRAID).")
+    parser.add_argument("--sata-gen",               default="2",         help="SATA Gen.", choices=["1", "2", "3"])
     parser.add_argument("--vadj",                   default="1.2V",      help="FMC VADJ value.", choices=["1.2V", "1.8V", "2.5V", "3.3V"])
     viopts = parser.add_mutually_exclusive_group()
     viopts.add_argument("--with-video-terminal",    action="store_true", help="Enable Video Terminal (HDMI).")
@@ -179,6 +180,7 @@ def main():
         sys_clk_freq           = int(float(args.sys_clk_freq)),
         with_ethernet          = args.with_ethernet,
         with_sata              = args.with_sata,
+        sata_gen               = "gen" + args.sata_gen,
         vadj                   = args.vadj,
         with_video_terminal    = args.with_video_terminal,
         with_video_framebuffer = args.with_video_framebuffer,