diff --git a/DiscImageChef.Server/Models/BaseModel.cs b/DiscImageChef.Server/Models/BaseModel.cs
new file mode 100644
index 00000000..ad69c880
--- /dev/null
+++ b/DiscImageChef.Server/Models/BaseModel.cs
@@ -0,0 +1,10 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace DiscImageChef.Server.Models
+{
+    public class BaseModel<T>
+    {
+        [Key]
+        public T Id { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/DiscImageChef.Server/Models/Command.cs b/DiscImageChef.Server/Models/Command.cs
index 9c5d3bf6..6fe0dfe1 100644
--- a/DiscImageChef.Server/Models/Command.cs
+++ b/DiscImageChef.Server/Models/Command.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class Command
+    public class Command : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public string Name  { get; set; }
         public long   Count { get; set; }
     }
diff --git a/DiscImageChef.Server/Models/DeviceStat.cs b/DiscImageChef.Server/Models/DeviceStat.cs
index ca677b8c..a33c2855 100644
--- a/DiscImageChef.Server/Models/DeviceStat.cs
+++ b/DiscImageChef.Server/Models/DeviceStat.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class DeviceStat
+    public class DeviceStat : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public         string Manufacturer { get; set; }
         public         string Model        { get; set; }
         public         string Revision     { get; set; }
diff --git a/DiscImageChef.Server/Models/Filesystem.cs b/DiscImageChef.Server/Models/Filesystem.cs
index be57e4a7..4ccd324f 100644
--- a/DiscImageChef.Server/Models/Filesystem.cs
+++ b/DiscImageChef.Server/Models/Filesystem.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class Filesystem
+    public class Filesystem : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public string Name  { get; set; }
         public long   Count { get; set; }
     }
diff --git a/DiscImageChef.Server/Models/Filter.cs b/DiscImageChef.Server/Models/Filter.cs
index b573cc32..5103d3f8 100644
--- a/DiscImageChef.Server/Models/Filter.cs
+++ b/DiscImageChef.Server/Models/Filter.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class Filter
+    public class Filter : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public string Name  { get; set; }
         public long   Count { get; set; }
     }
diff --git a/DiscImageChef.Server/Models/FindReportModel.cs b/DiscImageChef.Server/Models/FindReportModel.cs
index bebee1ba..e8d95eb7 100644
--- a/DiscImageChef.Server/Models/FindReportModel.cs
+++ b/DiscImageChef.Server/Models/FindReportModel.cs
@@ -2,9 +2,8 @@ using System.Collections.Generic;
 
 namespace DiscImageChef.Server.Models
 {
-    public class FindReportModel
+    public class FindReportModel : BaseModel<int>
     {
-        public int          Id           { get; set; }
         public string       Manufacturer { get; set; }
         public string       Model        { get; set; }
         public string       Revision     { get; set; }
diff --git a/DiscImageChef.Server/Models/IdHashModel.cs b/DiscImageChef.Server/Models/IdHashModel.cs
index c05ccd23..bd313598 100644
--- a/DiscImageChef.Server/Models/IdHashModel.cs
+++ b/DiscImageChef.Server/Models/IdHashModel.cs
@@ -1,6 +1,6 @@
 namespace DiscImageChef.Server.Models
 {
-    public class IdHashModel
+    public class IdHashModel : BaseModel<int>
     {
         public IdHashModel(int id, string hash)
         {
@@ -8,7 +8,6 @@ namespace DiscImageChef.Server.Models
             Hash = hash;
         }
 
-        public int    Id          { get; set; }
         public string Hash        { get; set; }
         public string Description { get; set; }
         public int[]  Duplicates  { get; set; }
diff --git a/DiscImageChef.Server/Models/Media.cs b/DiscImageChef.Server/Models/Media.cs
index 561c0ed1..bc8b1beb 100644
--- a/DiscImageChef.Server/Models/Media.cs
+++ b/DiscImageChef.Server/Models/Media.cs
@@ -32,19 +32,16 @@
 
 using System;
 using System.ComponentModel;
-using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using DiscImageChef.CommonTypes;
 
 namespace DiscImageChef.Server.Models
 {
-    public class Media
+    public class Media : BaseModel<int>
     {
         [NotMapped]
         (string type, string subType) _mediaType;
 
-        [Key]
-        public int Id { get;       set; }
         public string Type  { get; set; }
         public bool   Real  { get; set; }
         public long   Count { get; set; }
diff --git a/DiscImageChef.Server/Models/MediaFormat.cs b/DiscImageChef.Server/Models/MediaFormat.cs
index e62d66d9..b438431f 100644
--- a/DiscImageChef.Server/Models/MediaFormat.cs
+++ b/DiscImageChef.Server/Models/MediaFormat.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class MediaFormat
+    public class MediaFormat : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public string Name  { get; set; }
         public long   Count { get; set; }
     }
diff --git a/DiscImageChef.Server/Models/MmcModelForView.cs b/DiscImageChef.Server/Models/MmcModelForView.cs
index d8d6dcd4..ecda25a8 100644
--- a/DiscImageChef.Server/Models/MmcModelForView.cs
+++ b/DiscImageChef.Server/Models/MmcModelForView.cs
@@ -3,9 +3,8 @@ using System.ComponentModel.DataAnnotations;
 
 namespace DiscImageChef.Server.Models
 {
-    public class MmcModelForView
+    public class MmcModelForView : BaseModel<int>
     {
-        public int Id { get; set; }
         [DisplayFormat(NullDisplayText = "none"), DisplayName("MMC FEATURES ID")]
         public int? FeaturesId { get; set; }
         [DisplayName("Response length (bytes)")]
diff --git a/DiscImageChef.Server/Models/OperatingSystem.cs b/DiscImageChef.Server/Models/OperatingSystem.cs
index d8c0676c..bfc7dc3d 100644
--- a/DiscImageChef.Server/Models/OperatingSystem.cs
+++ b/DiscImageChef.Server/Models/OperatingSystem.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class OperatingSystem
+    public class OperatingSystem : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public string Name    { get; set; }
         public string Version { get; set; }
         public long   Count   { get; set; }
diff --git a/DiscImageChef.Server/Models/Partition.cs b/DiscImageChef.Server/Models/Partition.cs
index 36b74f66..afe153b3 100644
--- a/DiscImageChef.Server/Models/Partition.cs
+++ b/DiscImageChef.Server/Models/Partition.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class Partition
+    public class Partition : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public string Name  { get; set; }
         public long   Count { get; set; }
     }
diff --git a/DiscImageChef.Server/Models/UsbProduct.cs b/DiscImageChef.Server/Models/UsbProduct.cs
index 45b22237..0bf22a1f 100644
--- a/DiscImageChef.Server/Models/UsbProduct.cs
+++ b/DiscImageChef.Server/Models/UsbProduct.cs
@@ -31,12 +31,11 @@
 // ****************************************************************************/
 
 using System;
-using System.ComponentModel.DataAnnotations;
 using Newtonsoft.Json;
 
 namespace DiscImageChef.Server.Models
 {
-    public class UsbProduct
+    public class UsbProduct : BaseModel<int>
     {
         public UsbProduct() { }
 
@@ -48,9 +47,6 @@ namespace DiscImageChef.Server.Models
             Vendor    = vendor;
         }
 
-        [Key]
-        public int Id { get; set; }
-
         public ushort   ProductId    { get; set; }
         public string   Product      { get; set; }
         public DateTime AddedWhen    { get; set; }
diff --git a/DiscImageChef.Server/Models/UsbVendor.cs b/DiscImageChef.Server/Models/UsbVendor.cs
index 81670ff5..f7a3a6ec 100644
--- a/DiscImageChef.Server/Models/UsbVendor.cs
+++ b/DiscImageChef.Server/Models/UsbVendor.cs
@@ -38,7 +38,7 @@ using Newtonsoft.Json;
 
 namespace DiscImageChef.Server.Models
 {
-    public class UsbVendor
+    public class UsbVendor : BaseModel<int>
     {
         public UsbVendor() { }
 
@@ -49,9 +49,6 @@ namespace DiscImageChef.Server.Models
             AddedWhen = ModifiedWhen = DateTime.UtcNow;
         }
 
-        [Key]
-        public int Id { get; set; }
-
         [DisplayName("Manufacturer ID"), DisplayFormat(DataFormatString = "0x{0:X4}")]
         public ushort VendorId { get; set; }
         [DisplayName("Manufacturer")]
diff --git a/DiscImageChef.Server/Models/Version.cs b/DiscImageChef.Server/Models/Version.cs
index 25bfa08c..6e964bef 100644
--- a/DiscImageChef.Server/Models/Version.cs
+++ b/DiscImageChef.Server/Models/Version.cs
@@ -30,15 +30,10 @@
 // Copyright © 2011-2019 Natalia Portillo
 // ****************************************************************************/
 
-using System.ComponentModel.DataAnnotations;
-
 namespace DiscImageChef.Server.Models
 {
-    public class Version
+    public class Version : BaseModel<int>
     {
-        [Key]
-        public int Id { get; set; }
-
         public string Value { get; set; }
         public long   Count { get; set; }
     }